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Edexcel IGCSE 4MA1/2FR, Wednesday 4 June 2025: Worked Solutions and Mark Schemes

Sir Faraz Hassan

Sir Faraz Hassan

26 Aug 2026

Table of Contents
    Edexcel International GCSE Mathematics A (4MA1)4MA1/2FR - Foundation Tier - Wednesday 4 June 2025100 marks  ·  2 hours  ·  Calculator allowed
    Original worked solutions for Edexcel International GCSE Mathematics A, Paper 4MA1/2FR (Foundation Tier), June 2025 series, sat Wednesday 4 June 2025 –100 marks, 2 hours, calculator allowed. The questions have been reworded; all numerical values match the original paper. The official question paper and mark scheme are published by Pearson Edexcel. This resource reproduces neither the exam paper nor the official mark scheme.
    Both are PDF files hosted by Pearson: official question paper (PDF) and official mark scheme (PDF).

    Try each question yourself first, then open the worked solution to check your method and see exactly where each method mark (M1) and accuracy mark (A1) is earned. The questions follow the same order as the original paper and carry the same marks.

    Download printable PDF

    Every question with a full worked solution and mark scheme - free PDF

    Worked solutions, questions 1 to 16 of 27

    Question 1, Calculator allowed

    (a) Put these numbers in order of size, starting with the smallest.

    83148462299983 \qquad 148 \qquad 46 \qquad 229 \qquad 99 [1 mark]

    (b) Put these decimals in order of size, starting with the smallest.

    0.250.50.460.080.4170.25 \qquad 0.5 \qquad 0.46 \qquad 0.08 \qquad 0.417 [1 mark]

    (c) Express 0.810.81 as a fraction. [1 mark]

    (d) Work out the number that is exactly halfway between 0.20.2 and 0.30.3 [1 mark]

    (a)(b)(c)(d)
    [Total 4 marks]
    Show solution & mark schemeHide solution & mark scheme

    Question 1 - Exam Solution

    Understanding the Question
    Given
    Five whole numbers: 8383, 148148, 4646, 229229, 9999
    Five decimals: 0.250.25, 0.50.5, 0.460.46, 0.080.08, 0.4170.417
    The decimal 0.810.81
    The two decimals 0.20.2 and 0.30.3
    None of the five whole numbers is repeated and no two of the five decimals are equal, so each list has one order and one order only.
    Find
    (a) the five whole numbers written out smallest first (b) the five decimals written out smallest first (c) 0.810.81 written as a fraction (d) the number exactly halfway between 0.20.2 and 0.30.3
    Plan the Solution
    • Count the digits first. A three-digit number is bigger than any two-digit number, so that splits the list before a single digit is compared.
    • Fill the shorter decimals out with zeros until all five have three decimal places, the longest one there. Once they are all the same length they can be compared like whole numbers.
    • Count the decimal places in 0.810.81. Two places means hundredths, so the denominator is 100100.
    • Halfway between two numbers is the midpoint: add the two numbers and halve the total.
    Worked Solution [4 marks]
    Rule - Place value: compare two numbers column by column from the left, and the first column where they differ decides which one is larger. Zeros written on the end of a decimal change nothing, and a decimal with two decimal places is a number of hundredths.
    Step 1: (a) split the whole numbers by how many digits they have
    46<83<9946 < 83 < 99
    148<229148 < 229
    46<83<99<148<22946 < 83 < 99 < 148 < 229
    (Reason: Every two-digit number is smaller than every three-digit number, so 4646, 8383 and 9999 all come before 148148 and 229229. Inside each group the leading digit settles it: 44, then 88, then 99 in the tens column, and 11 before 22 in the hundreds column.)
    Step 2: (b) give every decimal the same number of decimal places
    0.25=0.2500.25 = 0.250
    0.5=0.5000.5 = 0.500
    0.46=0.4600.46 = 0.460
    0.08=0.0800.08 = 0.080
    0.417=0.4170.417 = 0.417
    (Reason: 0.4170.417 has the most decimal places, three, so every decimal is filled out to three places. A zero written on the end of a decimal adds nothing to its value - it only records that there are no thousandths.)
    Step 3: (b) compare the decimals as whole numbers of thousandths
    80<250<417<460<50080 < 250 < 417 < 460 < 500
    0.08<0.25<0.417<0.46<0.50.08 < 0.25 < 0.417 < 0.46 < 0.5
    (Reason: With three decimal places each decimal is a whole number of thousandths: 0.0800.080 is 8080 of them and 0.5000.500 is 500500. Whole numbers are easy to put in order, and the order they come in is the order the decimals come in.)
    Step 4: (c) read the decimal as a number of hundredths
    0.81=810+11000.81 = \dfrac{8}{10} + \dfrac{1}{100}
    0.81=80100+1100=811000.81 = \dfrac{80}{100} + \dfrac{1}{100} = \dfrac{81}{100}
    (Reason: The 88 sits in the tenths column and the 11 in the hundredths column, so together they make 8181 hundredths. Two decimal places always give a denominator of 100100, and since 8181 and 100100 share no factor, that fraction is already as simple as it goes.)
    Step 5: (d) take the midpoint of the two decimals
    0.2+0.32=0.52=0.25\dfrac{0.2 + 0.3}{2} = \dfrac{0.5}{2} = 0.25
    (Reason: Halfway between two numbers means the midpoint, and the midpoint is what you reach by adding the two numbers together and halving the total. That works whatever the two numbers are.)
    (a) 4646, 8383, 9999, 148148, 229229(b) 0.080.08, 0.250.25, 0.4170.417, 0.460.46, 0.50.5(c) 81100\dfrac{81}{100}(d) 0.250.25
    Verification
    Check 1: Read the answer to (a) backwards. If the list really runs smallest to largest, then read the other way it must run largest to smallest, and it must still hold the same five numbers the question printed. Backwards it reads 229229, 148148, 9999, 8383, 4646 - largest first, the same five numbers, none repeated and none missing.
    Check 2: Order the decimals a second way, without lining up any decimal places. Compare each one against a landmark instead: 0.080.08 is less than a tenth, 0.250.25 is a quarter, 0.4170.417 is a little over four tenths, 0.460.46 is just under a half and 0.50.5 is exactly a half. Those landmarks fall in that same order, so the list matches the one the padding method gave.
    Check 3: Turn the fraction back into a decimal. Dividing by 100100 moves every digit two columns to the right. 81100=0.81\dfrac{81}{100} = 0.81, which is the decimal the question printed.
    Check 4: Measure the distance from the answer to each end of the pair. 0.250.20.25 - 0.2 and 0.30.250.3 - 0.25 should come out the same size as each other. Both gaps come to 0.050.05, so 0.250.25 sits the same distance from 0.20.2 as it does from 0.30.3, which is what halfway means.
    Mark Scheme Breakdown
    StepMarkDescriptionGot it?
    (a) 4646, 8383, 9999, 148148, 229229B1Correct answer only.
    (b) 0.080.08, 0.250.25, 0.4170.417, 0.460.46, 0.50.5B1Correct answer only.
    (c) 81100\dfrac{81}{100}B1Any equivalent fraction is accepted.
    (d) 0.250.25B1Allow 14\dfrac{1}{4} or any equivalent.

    Full marks: 4/4

    Question 2, Calculator allowed

    Marina recorded the ages, in years, of the seven cats at an animal rescue centre.
    Here are her results.

    291067942 \qquad 9 \qquad 10 \qquad 6 \qquad 7 \qquad 9 \qquad 4

    (a) Write down the mode of the ages. [1 mark]

    (b) Work out the median age. [2 marks]

    (c) Find the range of the ages. [1 mark]

    (a)(b)(c)
    [Total 4 marks]
    Show solution & mark schemeHide solution & mark scheme

    Question 2 - Exam Solution

    Understanding the Question
    Given
    The seven ages, in the order they were recorded: 291067942 \qquad 9 \qquad 10 \qquad 6 \qquad 7 \qquad 9 \qquad 4
    Seven values, and 77 is odd, so once they are written in order of size exactly one of them sits in the middle.
    Find
    (a) the mode of the ages (b) the median age (c) the range of the ages
    Plan the Solution
    • Write the seven ages in order of size first. The median cannot be read off until they are ordered, and ordering them also puts equal ages side by side for the mode and the smallest and largest ages at the two ends for the range.
    • The mode is the age that appears most often, so count how many times each age appears. The counts have to add back up to 77.
    • With 77 ages in order, the middle one is the 44th, because 33 ages sit below it and 33 sit above it.
    • The range is one subtraction: the largest age take away the smallest age.
    Worked Solution [4 marks]
    Rule - Mode, median and range: the mode is the value that appears most often, the median is the middle value once the data is written in order of size, and the range is largestsmallest\text{largest} - \text{smallest}. Only the median needs the data ordered, but ordering it once serves all three.
    Step 1: put the seven ages in order of size
    246799102 \quad 4 \quad 6 \quad 7 \quad 9 \quad 9 \quad 10
    (Reason: The same seven ages the question printed, smallest first, with nothing added, dropped or altered. Part (b) awards a method mark for this ordering on its own, and it sets the other two parts up as well: the two 99s now sit side by side for part (a), and the smallest and largest ages sit at the two ends for part (c).)
    Step 2: (a) count how many times each age appears
    9 appears twice9 \text{ appears twice}
    mode=9\text{mode} = 9
    (Reason: Reading along the ordered list, the two 99s are the only pair: 22, 44, 66, 77 and 1010 each appear once and 99 appears twice, which accounts for all 77 ages. The mode is the age that appears most often, so it is the age 99 itself, never the 22 that says how many times it was recorded.)
    Step 3: (b) take the middle value of the ordered list
    middle position=7+12=4\text{middle position} = \dfrac{7 + 1}{2} = 4
    246799102 \quad 4 \quad 6 \quad 7 \quad 9 \quad 9 \quad 10
    median=7\text{median} = 7
    (Reason: There are 77 ages, an odd number, so one of them sits exactly in the middle. Counting in from both ends at once, 22, 44 and 66 lie below it and 99, 99 and 1010 lie above it, which leaves the 44th value of the ordered list on its own in the middle. The ordering has to come first: the middle of the list as it was recorded is not the median.)
    Step 4: (c) take the smallest age from the largest
    range=102=8\text{range} = 10 - 2 = 8
    (Reason: The ordered list has the largest age, 1010, at one end and the smallest, 22, at the other, and the range is the gap between them. It measures how spread out the ages are, so it is a single number, 88, and not the pair 22 to 1010.)
    (a) 99(b) 77(c) 88
    Verification
    Check 1: Go back to the list as the question printed it and tally the ages there, with nothing put in order. If the mode is right, one age appears more often than any other and the tallies add back up to seven. 99 appears twice and 22, 44, 66, 77 and 1010 appear once each, which is 2+5=72 + 5 = 7 ages altogether, so 99 is the only age recorded more than once.
    Check 2: Write the ages in order the other way round, largest first, and count to the same position. The mark scheme accepts either ordering, so the middle value has to come out the same counting from either end. Largest first the list reads 1099764210 \quad 9 \quad 9 \quad 7 \quad 6 \quad 4 \quad 2, and the 44th value from that end is 77, with 33 ages on each side of it.
    Check 3: Find the range without subtracting. Count up in ones from the smallest age to the largest, and separately add up the gaps between neighbouring ages in the ordered list, which must come to the same total. Counting 22 up to 1010 takes 88 steps, and the six gaps 2+2+1+2+0+12 + 2 + 1 + 2 + 0 + 1 also come to 88.
    Mark Scheme Breakdown
    StepMarkDescriptionGot it?
    (a) 99B1Correct answer only.
    (b) 246799102 \quad 4 \quad 6 \quad 7 \quad 9 \quad 9 \quad 10 or 1099764210 \quad 9 \quad 9 \quad 7 \quad 6 \quad 4 \quad 2M1For ordering the numbers. Allow one error or one omission.
    (b) 77A1A correct answer scores full marks, unless it comes from obviously incorrect working.
    (c) 88B1Correct answer only.

    Full marks: 4/4

    Question 3, Calculator allowed

    The diagram shows a 3-D shape.

    Diagram NOTaccurately drawn
    ABCDEF

    (a) (i) Write down the mathematical name of this shape.
    [1 mark]
    (ii) Write down the number of edges of this shape. [1 mark]

    The grid below shows six quadrilaterals.
    Two of the quadrilaterals are congruent.

    (b) Write down the letters of these two quadrilaterals.
    [1 mark]
    (c) Write down the letter of the quadrilateral that has no lines of symmetry. [1 mark]

    (a) (i)(a) (ii)(b)(c)
    [Total 4 marks]
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    Question 3 - Exam Solution

    Understanding the Question
    Given
    A 3-D shape drawn in perspective, with the three edges at its hidden corner dashed.
    Six quadrilaterals, AA to FF, drawn on a square grid.
    Find
    The mathematical name of the 3-D shape. The number of edges the 3-D shape has. The two quadrilaterals that are congruent. The quadrilateral that has no lines of symmetry.
    Plan the Solution
    • Read the solid off the drawing: two equal square faces joined by four equal edges.
    • Count the edges in groups, so that the dashed ones are not left out.
    • Congruent means the same shape and the same size, so measure the sides of each quadrilateral and look for two that match.
    • A line of symmetry folds a shape exactly onto itself, so test each quadrilateral for a fold line.
    Worked Solution [4 marks]
    A cube has 66 square faces, 88 vertices and 1212 edges. Congruent shapes have exactly the same size and shape, so one can be turned, or turned over, to fit exactly on the other. A line of symmetry folds a shape exactly onto itself.
    Step 1: name the solid
    (Reason: Every face of the drawing is a square and every edge is the same length, so the solid is a cube. A cube is the cuboid whose length, width and height are all equal, which is why a mark scheme will also accept cuboid or square prism here.)
    Step 2: count the edges
    4+4=84 + 4 = 8
    8+4=128 + 4 = 12
    (Reason: Count in groups so that none is missed. The square face at the front has 44 edges and the square face behind it has 44 more, which is 88. Then 44 edges join the two faces, one at each corner. Only three of those four are drawn solid: the fourth runs back to the hidden corner and is dashed, so it is the one that gets forgotten.)
    Step 3: find the congruent pair
    12+32=10\sqrt{1^{2} + 3^{2}} = \sqrt{10}
    (Reason: BB and DD both have parallel sides of 33 squares and 11 square, a height of 33 squares, and two sloping sides that each run 11 square across and 33 squares up. Every side of one matches a side of the other, and DD is simply BB turned over, which changes nothing about its size. FF has sloping sides of 10\sqrt{10} squares as well, but its parallel sides are 77 and 11, so it is not congruent to either of them.)
    Step 4: look for a line of symmetry
    12+22=5\sqrt{1^{2} + 2^{2}} = \sqrt{5}
    22+22=8\sqrt{2^{2} + 2^{2}} = \sqrt{8}
    (Reason: Each of the six is a trapezium, and a trapezium folds onto itself only when its two sloping sides are equal. In CC the left side rises 22 squares over 11 square, so it measures 5\sqrt{5} squares, while the right side falls 22 squares over 22 squares, so it measures 8\sqrt{8} squares. Those are not equal, so there is no fold line. The other five all have equal sloping sides, so each of them has one line of symmetry.)
    (a) (i) cube(a) (ii) 1212(b) BB and DD(c) CC
    Verification
    Check 1: Count something else about the same solid. A cube has 88 corners and 66 faces, and for any solid of this kind VE+F=2V - E + F = 2. 812+6=28 - 12 + 6 = 2, so 1212 edges is right.
    Check 2: Move BB onto DD instead of measuring. Turn BB over in a horizontal line, then slide it 33 squares to the left, so that every corner (x,y)(x, y) goes to (x3,11y)(x - 3, 11 - y). (5,9)(2,2)(5, 9) \rightarrow (2, 2), (6,9)(3,2)(6, 9) \rightarrow (3, 2), (7,6)(4,5)(7, 6) \rightarrow (4, 5), (4,6)(1,5)(4, 6) \rightarrow (1, 5) and those four points are exactly the corners of DD.
    Check 3: Test CC a second way. A fold line of a trapezium has to pass through the midpoint of both parallel sides, so compare the two midpoints. The long side runs from 99 to 1313, with midpoint 1111; the short side runs from 1010 to 1111, with midpoint 10.510.5. They are not above one another, so no fold line exists.
    Mark Scheme Breakdown
    StepMarkDescriptionGot it?
    (a) (i) CubeB1Allow a misspelling. Allow cuboid. Allow prism or square prism or rectangular prism.
    (a) (ii) 1212B1cao
    (b) BB and DDB1Allow DD and BB (or bb and dd etc).
    (c) CCB1Allow cc.

    Full marks: 4/4

    Question 4, Calculator allowed

    (a) Convert 50005\,000 millilitres into litres. [1 mark]

    (b) Work out the difference between a length of 33 metres and a length of 8585 centimetres.
    Give your answer in centimetres. [2 marks]

    (a) litres(b) centimetres
    [Total 3 marks]
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    Question 4 - Exam Solution

    Understanding the Question
    Given
    (a) A volume of 50005\,000 millilitres.
    (b) A length of 33 metres and a length of 8585 centimetres.
    Find
    (a) That same volume written in litres. (b) The difference between the two lengths, given in centimetres.
    Plan the Solution
    • One litre is 10001\,000 millilitres, so part (a) is a single division.
    • Part (b) gives the two lengths in different units, and lengths can only be subtracted once they are in the same unit.
    • The answer is wanted in centimetres, so change the metres into centimetres and do the subtraction there.
    Worked Solution [3 marks]
    Metric conversions: 11 litre is 10001\,000 millilitres, and 11 metre is 100100 centimetres. Multiply when moving to the smaller unit, divide when moving to the larger one.
    Step 1: divide the millilitres by 10001\,000
    1 litre=1000 ml1 \text{ litre} = 1\,000 \text{ ml}
    50001000=5\dfrac{5\,000}{1\,000} = 5
    (Reason: A litre is the larger unit, so the number must come out smaller. 50005\,000 millilitres fills five one-litre bottles exactly.)
    Step 2: write the 33 metres in centimetres
    1 m=100 cm1 \text{ m} = 100 \text{ cm}
    3×100=3003 \times 100 = 300
    (Reason: A centimetre is the smaller unit, so the number must come out bigger. Multiplying by 100100 carries the metres into centimetres.)
    Step 3: subtract the shorter length from the longer one
    300 cm85 cm=215 cm300 \text{ cm} - 85 \text{ cm} = 215 \text{ cm}
    (Reason: Both lengths are now in centimetres, so they subtract directly and the difference is already in the unit the question asks for.)
    (a) 55 litres(b) 215215 centimetres
    Verification
    Check 1: Turn the answer to part (a) back into millilitres by multiplying by 10001\,000. 5×1000=50005 \times 1\,000 = 5\,000 millilitres, which is the volume the question gives.
    Check 2: Do part (b) in metres instead. 8585 centimetres is 0.850.85 metres, so subtract in metres and convert the difference afterwards. 30.85=2.153 - 0.85 = 2.15 metres, and 2.15×100=2152.15 \times 100 = 215 centimetres, the same answer.
    Check 3: Add the difference back on to the shorter length and see whether the longer length comes back. 85+215=30085 + 215 = 300 centimetres, which is the 33 metres the question gives.
    Mark Scheme Breakdown
    StepMarkDescriptionGot it?
    (a) 55B1For the correct answer.
    (b) 3×100  (=300)3 \times 100 \; (= 300) or 30.85  (=2.15)3 - 0.85 \; (= 2.15) or, with digits 300300, either 30085300 - 85 or 8530085 - 300M1For conversion to centimetres, or a method to work out the difference in metres, or a method to find the difference in centimetres using their converted 300300. For digits 300300, allow 3030, 300300, 30003\,000, 0.30.3, 0.030.03 and so on, but not 33.
    215215A1Allow 215-215. A correct answer scores full marks unless it comes from obvious incorrect working.

    Full marks: 3/3

    Question 5, Calculator allowed

    (a) Simplify the expression a+a+a+a+aa + a + a + a + a [1 mark]

    (b) Simplify the expression b×c×7b \times c \times 7 [1 mark]

    (c) Solve the equation 5d=405d = 40 [1 mark]

    (a)(b)(c) d =
    [Total 3 marks]
    Show solution & mark schemeHide solution & mark scheme

    Question 5 - Exam Solution

    Understanding the Question
    Given
    (a) The sum a+a+a+a+aa + a + a + a + a, which adds the same letter over and over.
    (b) The product b×c×7b \times c \times 7, which multiplies two letters and a number.
    (c) The equation 5d=405d = 40.
    Find
    (a) That sum written in its simplest form. (b) That product written in its simplest form. (c) The value of dd that makes the equation true.
    Plan the Solution
    • Part (a) adds one letter to itself several times, so count how many lots of aa there are and write that count in front of the letter.
    • Part (b) only multiplies, and multiplying can be done in any order, so move the 77 to the front and write the letters straight after it.
    • Part (c) has dd multiplied by 55, so undo that multiplication by dividing both sides by 55.
    Worked Solution [3 marks]
    Algebra shorthand: repeated addition of one letter is written as a count in front of that letter, so a+a=2aa + a = 2a; a product is written with its number first and its letters after it, so 3×p×q3 \times p \times q is written 3pq3pq; and an equation stays balanced when the same thing is done to both sides.
    Step 1: count the aa terms in part (a)
    a+a+a+a+a=5aa + a + a + a + a = 5a
    (Reason: There are five separate lots of aa being added. Adding a letter to itself is counted, not multiplied, so the count is written in front of the letter, where it is called the coefficient.)
    Step 2: put the 77 in front in part (b)
    b×c×7=7×b×cb \times c \times 7 = 7 \times b \times c
    7×b×c=7bc7 \times b \times c = 7bc
    (Reason: Multiplying can be done in any order, so the 77 moves to the front. A number multiplying letters is written next to them, so no multiplication signs are needed. Writing the letters the other way round, as 7cb7cb, is equally correct.)
    Step 3: divide both sides by 55 in part (c)
    5d=405d = 40
    5d5=405\dfrac{5d}{5} = \dfrac{40}{5}
    d=8d = 8
    (Reason: 5d5d means five lots of dd, so dividing both sides by 55 leaves dd on its own and keeps the two sides equal.)
    (a) 5a5a(b) 7bc7bc(c) d=8d = 8
    Verification
    Check 1: Put a=3a = 3 into the sum the question gives, and into the answer, and see whether the two agree. 3+3+3+3+3=153 + 3 + 3 + 3 + 3 = 15 and 5×3=155 \times 3 = 15, so the simplified form gives the same value as the sum it came from.
    Check 2: Put b=2b = 2 and c=4c = 4 into the product the question gives, and into the answer. 2×4×7=562 \times 4 \times 7 = 56 and 7×2×4=567 \times 2 \times 4 = 56, so reordering the factors has not changed the value.
    Check 3: Put d=8d = 8 back into the equation the question gives. 5×8=405 \times 8 = 40, which is the right-hand side, so d=8d = 8 is the solution.
    Mark Scheme Breakdown
    StepMarkDescriptionGot it?
    (a) 5a5aB1For the correct answer.
    (b) 7bc7bcB1Or equivalent, for example 7cb7cb.
    (c) 88B1For the correct answer.

    Full marks: 3/3

    Question 6, Calculator allowed

    The diagram shows a number machine.

    input× 4− 15output

    (a) Work out the output when the input is 1010 [1 mark]

    (b) Work out the output when the input is 2-2 [1 mark]

    (a)(b)
    [Total 2 marks]
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    Question 6 - Exam Solution

    Understanding the Question
    Given
    A number machine with two boxes: the first multiplies by 44, the second subtracts 1515.
    The input enters the first box, and whatever leaves the second box is the output.
    Find
    (a) the output when the input is 1010 (b) the output when the input is 2-2
    Plan the Solution
    • Follow the arrows from left to right. The number that leaves the first box is the number that enters the second.
    • Multiply by 44 first, then subtract 1515. The machine fixes that order, so the two boxes cannot be swapped.
    • Part (b) starts below zero, so carry the minus sign through the multiplication before subtracting.
    Worked Solution [2 marks]
    Rule - Read a number machine left to right: each box acts on the number that reaches it, so the output is 4×input154 \times \text{input} - 15.
    Step 1: (a) The first box multiplies by 44
    10×4=4010 \times 4 = 40
    (Reason: the input 1010 reaches the first box, so that box acts on it before anything else happens)
    Step 2: (a) The second box subtracts 1515
    4015=2540 - 15 = 25
    (Reason: the number leaving the first box, 4040, is the number entering the second)
    Step 3: (b) The first box multiplies by 44 again
    2×4=8-2 \times 4 = -8
    (Reason: four lots of a negative number is negative, so the minus sign travels through the multiplication)
    Step 4: (b) The second box subtracts 1515
    815=23-8 - 15 = -23
    (Reason: taking 1515 away from a number that is already below zero moves it further below zero)
    (a) 2525(b) 23-23
    Verification
    Check 1: Run part (a) backwards through the machine: undo the subtraction by adding 1515, then undo the multiplication by dividing by 44. 25+154=10\dfrac{25 + 15}{4} = 10, the input part (a) started from
    Check 2: Do the same for part (b), starting from 23-23. 23+154=2\dfrac{-23 + 15}{4} = -2, the input part (b) started from
    Check 3: Treat the whole machine as one calculation, 4n154n - 15, and substitute each input into it. 4×1015=254 \times 10 - 15 = 25 and 4×(2)15=234 \times (-2) - 15 = -23
    Mark Scheme Breakdown
    StepMarkDescriptionGot it?
    (a)B12525 cao
    (b)B123-23 cao

    Full marks: 2/2

    Question 7, Calculator allowed

    Douglas sells 8080 pies for a total of £176176
    15\dfrac{1}{5} of the pies are large.
    Each large pie costs £33
    The remaining pies are small.

    Work out the cost of one small pie. [4 marks]

    £
    [Total 4 marks]
    Show solution & mark schemeHide solution & mark scheme

    Question 7 - Exam Solution

    Understanding the Question
    Given
    Douglas sells 8080 pies altogether and takes £176176 for them.
    15\dfrac{1}{5} of the pies are large, and every large pie is priced at £33 on its own.
    The pies that are left over are the small ones, and they are all the same price as each other.
    Find
    the cost of one small pie, in pounds
    Plan the Solution
    • Count the large pies first: 15\dfrac{1}{5} of 8080 says how many there are, and every pie that is not large is small.
    • Work out what the large pies bring in on their own, then take that away from the total takings to leave what the small pies brought in.
    • Share the small pies' takings equally between the small pies. That is a division, and the divisor is the number of SMALL pies, not the number of pies on the stall.
    Worked Solution [4 marks]
    Rule - The takings split into two lots that make the whole: large takings+small takings=176\text{large takings} + \text{small takings} = 176, so taking one lot away leaves the other. Sharing a lot equally is a division: price of one pie=takingsnumber of those pies\text{price of one pie} = \dfrac{\text{takings}}{\text{number of those pies}}.
    Step 1: How many of the pies are large
    15×80=16\dfrac{1}{5} \times 80 = 16
    (Reason: one fifth means splitting the 8080 pies into five equal groups of 1616 and taking one of those groups)
    Step 2: How many of the pies are small
    8016=6480 - 16 = 64
    (Reason: every pie is either large or small, so the small ones are whatever is left of the 8080)
    Step 3: What the large pies bring in
    16×3=4816 \times 3 = 48
    (Reason: 1616 large pies at £33 each, so this part of the takings can be worked out without knowing anything about the small pies)
    Step 4: What the small pies bring in
    17648=128176 - 48 = 128
    (Reason: the two lots together make the whole £176176, so taking the large pies' £4848 away leaves the small pies' share of the takings)
    Step 5: Share those takings between the small pies
    12864=2\dfrac{128}{64} = 2
    (Reason: the 6464 small pies are all the same price, so the £128128 they brought in divides equally between them)
    £22
    Verification
    Check 1: Rebuild the takings from the two prices. If one small pie really costs £22, the 1616 large pies and the 6464 small pies must together bring in the total Douglas took. 16×3+64×2=48+128=17616 \times 3 + 64 \times 2 = 48 + 128 = 176, the total on the paper
    Check 2: Use the average price instead of the counts. Douglas takes £176176 for 8080 pies, so the average pie costs 17680=2.2\dfrac{176}{80} = 2.2, and each large pie sits 0.80.8 above that average. 16×0.8=12.816 \times 0.8 = 12.8 above average altogether, spread over the 6464 small pies gives 12.864=0.2\dfrac{12.8}{64} = 0.2 below average each, so 2.20.2=22.2 - 0.2 = 2
    Check 3: Work in batches of five pies, which is the smallest batch with the right mix: one large and four small. The 8080 pies make 1616 such batches. 17616=11\dfrac{176}{16} = 11 per batch, and 113=811 - 3 = 8 of that is the four small pies, so 84=2\dfrac{8}{4} = 2
    Mark Scheme Breakdown
    StepMarkDescriptionGot it?
    15×80  (=16)\dfrac{1}{5} \times 80 \; (= 16) or (115)×80  (=64)\left(1 - \dfrac{1}{5}\right) \times 80 \; (= 64) oeM1for a method to find the number of large pies or the number of small pies
    1616×3  (=48)\times 3 \; (= 48)M1for a method to find the total cost of the large pies. The quotation marks are the scheme's own: the candidate's number of large pies from the row above may be used here.
    176176 − “4848(=128)(= 128)M1for a method to find the total cost of the small pies. The quotation marks are the scheme's own: the candidate's total cost of the large pies from the row above may be used here.
    Correct answer scores full marks (unless from obvious incorrect working)A122

    Full marks: 4/4

    Question 8, Calculator allowed

    Gordon is going to book an apartment at a holiday resort for 77 nights.

    An apartment at the resort costs the same amount for each night.
    Gordon knows that the apartment costs 150150 euros for 22 nights.

    The resort also charges an additional tourist tax of 55 euros for each night.

    Work out the total cost of the apartment and the tax for 77 nights. [3 marks]

    euros
    [Total 3 marks]
    Show solution & mark schemeHide solution & mark scheme

    Question 8 - Exam Solution

    Understanding the Question
    Given
    Gordon is booking the apartment for 77 nights, and every night costs the same as every other night.
    The apartment on its own costs 150150 euros for 22 nights.
    A tourist tax of 55 euros is charged for each night, on top of what the apartment costs.
    Find
    the total cost of the apartment and the tax for 77 nights, in euros
    Plan the Solution
    • The 150150 euros pays for 22 equal nights, so halving it gives what one night of the apartment costs. That is the only rate the question does not hand you.
    • Scale that nightly cost up to 77 nights to get what the apartment costs on its own.
    • The tax is a separate charge made once for every night, so work it out over 77 nights as well, then add the two amounts. Watch which count of nights each part uses: 22 belongs to the price Gordon was quoted, and 77 belongs to the stay.
    Worked Solution [3 marks]
    Rule - A cost that is the same every night is shared out equally: cost of one night=cost of several nightsnumber of those nights\text{cost of one night} = \dfrac{\text{cost of several nights}}{\text{number of those nights}}. A charge made once per night is multiplied by the number of nights, and a total made of two separate charges is their sum.
    Step 1: What the apartment costs for one night
    1502=75\dfrac{150}{2} = 75
    (Reason: the 150150 euros pays for 22 nights that cost the same as each other, so one night is half of it)
    Step 2: What the apartment costs for the whole stay
    75×7=52575 \times 7 = 525
    (Reason: every night of the stay costs the same 7575 euros, so 77 nights cost seven times as much)
    Step 3: The tax for the whole stay
    5×7=355 \times 7 = 35
    (Reason: the tax is charged once for every night that Gordon stays, and the stay is 77 nights long, not the 22 nights the quoted price happens to cover)
    Step 4: Add the two charges together
    525+35=560525 + 35 = 560
    (Reason: Gordon pays for the apartment and pays the tax, so the total is the 525525 euros for the apartment plus the 3535 euros of tax)
    560560 euros
    Verification
    Check 1: Price one whole night first, tax included, instead of keeping the two charges apart. One night costs 75+5=8075 + 5 = 80 euros, and the stay is 77 of those nights. 80×7=56080 \times 7 = 560, the same total by a route that never forms 525525 or 3535
    Check 2: Scale the quoted package instead of dividing it. Two nights cost 150+5×2=160150 + 5 \times 2 = 160 euros once the tax on those two nights is added, and 77 nights is 3.53.5 such packages. 160×3.5=560160 \times 3.5 = 560, so no nightly rate is needed to reach the total
    Check 3: Work backwards from the answer. Take the tax off the total, then share what is left between the nights and see whether it rebuilds the price the paper quotes. 56035=525560 - 35 = 525, then 5257=75\dfrac{525}{7} = 75 a night, and 75×2=15075 \times 2 = 150 euros for two nights, which is the figure Gordon was given
    Mark Scheme Breakdown
    StepMarkDescriptionGot it?
    1502  (=75)\dfrac{150}{2} \; (= 75) or 5×7  (=35)5 \times 7 \; (= 35) or 150+5×22  (=80)\dfrac{150 + 5 \times 2}{2} \; (= 80)M1for a method to find the cost of the apartment without tax for 11 night or for a method to find the total cost of the tax for 77 nights or for a method to find the total cost of the apartment and the tax for 11 night
    7×7 \times7575++3535(=525+35)(= 525 + 35) or (“7575+5)×7+ \, 5) \times 7 or “8080×7\times 7M1for a complete method to find the total cost of the apartment and the tax for 77 nights. The quotation marks are the scheme's own: the candidate's own 7575, 3535 or 8080 from the row above may be used here.
    Correct answer scores full marks (unless from obvious incorrect working)A1560560

    Full marks: 3/3

    Question 9, Calculator allowed

    Pierre chooses one food item and one drink at a hotel breakfast bar.

    He can choose one food item from croissant (CC) or fruit (FF) or porridge (PP)
    He can choose one drink from milk (MM) or juice (JJ) or tea (TT)

    (a) List all the possible combinations that Pierre can choose. [2 marks]

    Yusuf and Rhys share some cherries in the ratio 3:43 : 4

    (b) What fraction of the cherries does Rhys get? [1 mark]

    (a)(b)
    [Total 3 marks]
    Show solution & mark schemeHide solution & mark scheme

    Question 9 - Exam Solution

    Understanding the Question
    Given
    (a) One food item from CC, FF or PP, and one drink from MM, JJ or TT.
    (b) Cherries shared between Yusuf and Rhys in the ratio 3:43 : 4.
    Find
    (a) Every possible food-and-drink combination, with none missing and none repeated. (b) The fraction of the cherries that Rhys gets.
    Plan the Solution
    • (a) Hold the food item fixed and run through all three drinks before moving on to the next food item. Working in that order is what stops a combination being missed.
    • (a) Then count what the finished list ought to hold: 33 food items, each of them with 33 drinks.
    • (b) Add the parts of the ratio to find how many equal shares the cherries are cut into, then put Rhys's parts over that total.
    Worked Solution [3 marks]
    Rule - Systematic listing: fix the first choice, run through every second choice, then move on to the next first choice. Rule - Ratio to fraction: in a share in the ratio a:ba : b, the second person's fraction of the whole is ba+b\dfrac{b}{a + b}.
    (a) Pair the croissant with each drink in turn
    CM,  CJ,  CTCM, \; CJ, \; CT
    (Reason: The food item stays at CC while only the drink changes, so all three croissant combinations come out together and none of them can be forgotten.)
    (a) Repeat for the fruit, and then for the porridge
    FM,  FJ,  FTFM, \; FJ, \; FT
    PM,  PJ,  PTPM, \; PJ, \; PT
    (Reason: The same three drinks are on offer whichever food item is picked, so every food item contributes 33 combinations of its own.)
    (a) Check that nothing has been missed
    3×3=93 \times 3 = 9
    (Reason: There are 33 food items and, for each one of them, 33 drinks, so the finished list must hold that many combinations - with no repeats in it and nothing extra.)
    (b) Count the equal parts in the ratio
    3+4=73 + 4 = 7
    (Reason: The ratio 3:43 : 4 cuts the cherries into 33 parts for Yusuf and 44 parts for Rhys, which is 77 equal parts altogether.)
    (b) Put Rhys's parts over the total number of parts
    43+4=47\dfrac{4}{3 + 4} = \dfrac{4}{7}
    (Reason: Rhys takes 44 of the 77 equal parts. A fraction of the whole always carries the number of equal parts underneath, not the other person's share.)
    (a) CMCM, CJCJ, CTCT, FMFM, FJFJ, FTFT, PMPM, PJPJ, PTPT(b) 47\dfrac{4}{7}
    Verification
    Check 1: Count the boxed list, and count how often each letter appears in it. The list holds 99 combinations, and each of CC, FF and PP appears 33 times, as does each of MM, JJ and TT.
    Check 2: Rebuild the list the other way round, drink first: all the MM combinations, then all the JJ combinations, then all the TT combinations. CMCM, FMFM, PMPM, CJCJ, FJFJ, PJPJ, CTCT, FTFT, PTPT - the same nine pairs in a different order, so none was missed and none was written twice.
    Check 3: Test the fraction on a number of cherries that divides exactly: share 7070 cherries in the ratio 3:43 : 4. One part is 1010, so Yusuf gets 3030 and Rhys gets 4040, and 4070=47\dfrac{40}{70} = \dfrac{4}{7}.
    Check 4: Add the two shares. Yusuf's fraction of the cherries and Rhys's fraction of the cherries must make one whole between them. 37+47=1\dfrac{3}{7} + \dfrac{4}{7} = 1
    Mark Scheme Breakdown
    StepMarkDescriptionGot it?
    (a) CMCM, CJCJ, CTCT, FMFM, FJFJ, FTFT, PMPM, PJPJ, PTPTB2for correct outcomes listed with no repeats and no extras
    (a) partial creditB1for 55, 66, 77 or 88 correct outcomes listed, ignore repeats and ignore extras or for 99 correct outcomes listed, ignore repeats and ignore extras
    (b) 47\dfrac{4}{7}B1oe
    (b) what oe accepts hereNoteoe is short for or equivalent: any fraction equal to 47\dfrac{4}{7} scores the mark, for example 814\dfrac{8}{14} or 4070\dfrac{40}{70}.

    Full marks: 3/3

    Question 10, Calculator allowed

    The conversion graph below can be used to change between miles and kilometres.

    0510152025305101520253035404550mileskilometres

    (a) Use the graph to change 2525 miles into kilometres. [1 mark]

    Claire delivers parcels for a courier firm.
    She is paid $0.80\$0.80 for every kilometre she drives.

    For one delivery round Claire was paid $19.20\$19.20 in total.

    (b) Work out the number of miles she drove. [2 marks]

    (a)(b)
    [Total 3 marks]
    Show solution & mark schemeHide solution & mark scheme

    Question 10 - Exam Solution

    Understanding the Question
    Given
    (a) A conversion graph between miles and kilometres. The miles axis runs from 00 to 3030 and the kilometres axis runs from 00 to 5050, and every small square is one unit.
    (b) Claire is paid $0.80\$0.80 for every kilometre she drives, and one delivery round paid her $19.20\$19.20 altogether.
    Find
    (a) 2525 miles, written in kilometres. (b) The number of miles Claire drove on that round.
    Plan the Solution
    • (a) Go up from the miles axis to the line, then turn and go straight across to the kilometres axis, and read the value there.
    • (b) The money comes first. Every kilometre is worth the same $0.80\$0.80, so the pay tells you how many kilometres she drove.
    • (b) Then use the same graph the other way round: across from the kilometres axis to the line, then down to the miles axis.
    Worked Solution [3 marks]
    Rule - Reading a conversion graph: start on the axis whose value you know, go to the line, then turn and go to the axis you want. Rule - A fixed rate: the number of kilometres is total paypay for one kilometre\dfrac{\text{total pay}}{\text{pay for one kilometre}}.
    (a) Find 25 on the miles axis and go straight up to the line
    25 miles25 \text{ miles}
    0510152025305101520253035404550mileskilometres
    (Reason: The miles axis is the horizontal one, so 2525 miles is a point along the bottom. It is one of the numbered lines, so there are no squares to count before you start.)
    (a) Turn and read across to the kilometres axis
    (25,  40)(25, \; 40)
    (Reason: Going straight across from the point on the line meets the kilometres axis at the numbered line 4040, so the point on the line is (25,  40)(25, \; 40) and 2525 miles is 4040 kilometres.)
    (b) Turn the pay into kilometres
    19.200.80=24\dfrac{19.20}{0.80} = 24
    (Reason: Every kilometre driven is worth $0.80\$0.80, so the number of kilometres is how many lots of 0.800.80 there are in 19.2019.20. That is a division, and it is the step the mark scheme gives the method mark for.)
    (b) Go across from 24 on the kilometres axis to the line
    24 km24 \text{ km}
    (Reason: 2424 is not one of the numbered lines. Each small square is 11 kilometre, so 2424 is the line one square below 2525. Go across from there until you meet the graph.)
    (b) Read down to the miles axis
    (15,  24)(15, \; 24)
    (Reason: Dropping straight down from that point on the line lands on 1515 on the miles axis, so 2424 kilometres is 1515 miles - the distance Claire drove.)
    (a) 4040 kilometres(b) 1515 miles
    Verification
    Check 1: Build the pay back up from the kilometres: 2424 kilometres at $0.80\$0.80 for each one. 0.80×24=19.200.80 \times 24 = 19.20, which is exactly what she was paid.
    Check 2: Convert the answer forwards instead of backwards. Part (a) reads 2525 miles as 4040 kilometres, so one mile is 1.61.6 kilometres. 1.6×15=241.6 \times 15 = 24 kilometres, which is the number of kilometres the pay gave.
    Check 3: Compare the two readings. Both points sit on the same straight line through the origin, so the miles and the kilometres must be in the same ratio at both of them. 1525=2440\dfrac{15}{25} = \dfrac{24}{40}, and both sides come to 0.60.6.
    Check 4: Check the size of the answer. A mile is longer than a kilometre, so the same journey must come to fewer miles than kilometres. 1515 miles against 2424 kilometres, which is the way round it should be.
    Mark Scheme Breakdown
    StepMarkDescriptionGot it?
    (a) 4040B1for 4040
    (b) 19.200.80\dfrac{19.20}{0.80} (=24)(= 24) oeM1for a method to find the number of kilometres she drove
    (b) 1515A1cao
    (b) what the printed scheme adds beside the answerNoteCorrect answer scores full marks (unless from obvious incorrect working)
    (b) what oe and cao accept hereNoteoe is short for or equivalent, so any correct method for dividing the total pay by the pay for one kilometre earns the M1 - counting up in lots of 0.800.80 as far as 19.2019.20 earns it just as the division does. cao is short for correct answer only, so the A1 needs 1515 itself.

    Full marks: 3/3

    Question 11, Calculator allowed

    The bar chart gives information about the results of the matches played by a youth club's five-a-side football team.

    wondrewlostNumberofmatches

    The team gained
    33 points for each match it won
    11 point for each match it drew
    00 points for each match it lost

    The team drew 1414 matches.

    Work out the total number of points the team gained. [3 marks]

    [Total 3 marks]
    Show solution & mark schemeHide solution & mark scheme

    Question 11 - Exam Solution

    Understanding the Question
    Given
    The bar chart has three bars: won is 55 squares tall, drew is 77 squares tall and lost is 44 squares tall.
    A win is worth 33 points, a draw is worth 11 point and a loss is worth 00 points.
    The team drew 1414 matches.
    The vertical axis carries no numbers, so the scale is not given directly.
    Find
    The total number of points the team gained.
    Plan the Solution
    • The vertical axis has no numbers on it, so the scale has to come from the one bar the question tells us about.
    • The drew bar is 77 squares tall and stands for 1414 matches, which fixes what one square is worth.
    • Use that scale to read the won bar and the lost bar.
    • Multiply each number of matches by the points that result is worth, then add the three totals.
    Worked Solution [3 marks]
    Rule - Reading an unnumbered scale: divide the value you are given by the height of its own bar in squares to find what one square stands for, then read every other bar with that same scale.
    Step 1: find what one square on the vertical axis stands for
    147=2\dfrac{14}{7} = 2
    (Reason: The drew bar is 77 squares tall and the team drew 1414 matches, so 77 squares stand for 1414 matches and one square stands for 22 matches.)
    Step 2: read the won bar and the lost bar
    won: 5×2=10\text{won: } 5 \times 2 = 10
    lost: 4×2=8\text{lost: } 4 \times 2 = 8
    (Reason: The won bar is 55 squares tall and the lost bar is 44 squares tall, and every square is worth 22 matches.)
    Step 3: turn each result into points
    from wins: 10×3=30\text{from wins: } 10 \times 3 = 30
    from draws: 14×1=14\text{from draws: } 14 \times 1 = 14
    from losses: 8×0=0\text{from losses: } 8 \times 0 = 0
    (Reason: A win is worth 33 points, a draw is worth 11 point and a loss is worth 00 points, so each number of matches is multiplied by its own points value.)
    Step 4: add the three totals
    30+14+0=4430 + 14 + 0 = 44
    (Reason: Adding the points from the wins, the draws and the losses gives the total the team gained.)
    4444 points
    Verification
    Check 1: Count matches instead of points. The three bars are 55, 77 and 44 squares tall, which is 1616 squares in all at 22 matches a square. 16×2=3216 \times 2 = 32 matches, and separately 10+14+8=3210 + 14 + 8 = 32
    Check 2: Price a whole square of each result instead. A square of wins is worth 3×2=63 \times 2 = 6 points, a square of draws is worth 1×2=21 \times 2 = 2 points, and a square of losses is worth nothing. 5×6+7×2=445 \times 6 + 7 \times 2 = 44
    Check 3: Take the scale out of it, as the mark scheme allows. The won bar is 57\dfrac{5}{7} of the drew bar, so the wins come straight from the 1414 matches. 57×14=10\dfrac{5}{7} \times 14 = 10 wins, so 3×10+14=443 \times 10 + 14 = 44
    Mark Scheme Breakdown
    StepMarkDescriptionGot it?
    147(=2)\dfrac{14}{7} \, (= 2) or 57×14(=10)\dfrac{5}{7} \times 14 \, (= 10) or 47×14(=8)\dfrac{4}{7} \times 14 \, (= 8)
    or any correct value marked on the vertical axis
    M1for working with the scale
    their 10×3(=30)\text{their } 10 \times 3 \, (= 30)
    or 5×3+7×1(=15+7=22)5 \times 3 + 7 \times 1 \, (= 15 + 7 = 22)
    or 5×3+14(=15+14=29)5 \times 3 + 14 \, (= 15 + 14 = 29)
    M1for a method to find the number of points won, or for a method to work out the total number of points using a vertical scale of 11 match per cm. The candidate's own value from the first mark may be used here - that is what the printed scheme's quotation marks mean.
    M0M1 is possibleNoteThe second method mark can be earned even when the first is not.
    4444A1Correct answer scores full marks (unless from obvious incorrect working).

    Full marks: 3/3

    Question 12, Calculator allowed

    The scale drawing shows the positions of two towns, Ashcombe and Redmere.

    AshcombeRedmereScale: 1 cm represents 5000 m

    (a) Work out the real distance, in kilometres, between Ashcombe and Redmere. [3 marks]

    On Sunday, Carla cycles directly from Ashcombe to Redmere.

    Carla leaves Ashcombe at 12 5012\ 50
    She arrives at Redmere at 17 1517\ 15

    (b) Work out the time Carla takes to cycle directly from Ashcombe to Redmere. [2 marks]

    (a) kilometres(b) hoursminutes
    [Total 5 marks]
    Show solution & mark schemeHide solution & mark scheme

    Question 12 - Exam Solution

    Understanding the Question
    Given
    A scale drawing showing Ashcombe and Redmere, joined by a straight line.
    Scale: 11 cm represents 50005000 m.
    Carla leaves Ashcombe at 12 5012\ 50 and arrives at Redmere at 17 1517\ 15.
    Find
    (a) The real distance between the two towns, in kilometres. (b) How long the journey takes, in hours and minutes.
    Plan the Solution
    • Measure the line between the two crosses with a ruler. It is 99 cm long.
    • Use the scale to turn that measurement into a real distance in metres.
    • Change the metres into kilometres, because part (a) asks for kilometres.
    • For part (b), count on from 12 5012\ 50: first to the next whole hour, then in whole hours, then the last few minutes.
    Worked Solution [5 marks]
    Rule - Scale drawing: multiply the measured length by whatever 11 cm represents, and the answer is the real distance. Rule - Elapsed time: count on from the start time in stages, never subtracting clock times as if they were ordinary numbers.
    Step 1: Measure the line on the scale drawing
    9 cm9 \text{ cm}
    AshcombeRedmereScale: 1 cm represents 5000 m9 cmrepresents 45 km
    (Reason: A ruler laid across the two crosses reads 99 cm. The mark scheme allows anything from 8.88.8 cm to 9.29.2 cm, so a reading a little either side of 99 still earns the mark.)
    Step 2: Use the scale to get the real distance in metres
    9×5000=450009 \times 5000 = 45\,000
    (Reason: Every 11 cm on the drawing stands for 50005000 m on the ground, so 99 cm stands for 99 lots of 50005000 m.)
    Step 3: Change the metres into kilometres
    450001000=45\dfrac{45\,000}{1000} = 45
    (Reason: There are 10001000 m in 11 km, so dividing the number of metres by 10001000 turns the answer into kilometres, which is the unit part (a) asks for.)
    Step 4: Count on from 12 5012\ 50 to the next whole hour
    6050=1060 - 50 = 10
    (Reason: An hour is 6060 minutes and the clock already reads 5050 minutes past, so 1010 more minutes reach 13 0013\ 00.)
    Step 5: Count on in whole hours to 17 0017\ 00
    1713=417 - 13 = 4
    (Reason: From 13 0013\ 00 to 17 0017\ 00 is 44 complete hours, with no odd minutes in them.)
    Step 6: Add the minutes from each end
    10+15=2510 + 15 = 25
    (Reason: The 1010 minutes before 13 0013\ 00 and the 1515 minutes after 17 0017\ 00 give 2525 minutes, on top of the 44 whole hours.)
    (a) 4545 kilometres(b) 44 hours 2525 minutes
    Verification
    Check 1: Take the other way through the scale. 50005000 m is 55 km, so 11 cm on the drawing stands for 55 km, and the measured length is multiplied by that instead. 9×5=459 \times 5 = 45 kilometres, the same answer.
    Check 2: Work backwards from the answer. 4545 km is 4500045\,000 m, and each centimetre on the drawing stands for 50005000 m, so dividing must give back the length that was measured. 450005000=9\dfrac{45\,000}{5000} = 9 centimetres, which is the length on the drawing.
    Check 3: Count part (b) a different way: in minutes after midnight. 12 5012\ 50 is 770770 minutes after midnight and 17 1517\ 15 is 10351035 minutes after midnight. 1035770=2651035 - 770 = 265 minutes, and 4×60+25=2654 \times 60 + 25 = 265, so the two ways agree.
    Mark Scheme Breakdown
    StepMarkDescriptionGot it?
    (a) Measure the line and use the scaleM1for measuring the line (a tolerance of ±0.2\pm 0.2 cm, so 8.88.8 cm to 9.29.2 cm) and using the scale, that is a measurement from 8.88.8 to 9.29.2 times 50005000, giving 4400044\,000 to 4600046\,000, or 50001000=5\dfrac{5000}{1000} = 5, or any seen value1000\dfrac{\text{any seen value}}{1000}, or for an attempt to convert a value into kilometres. Do not allow any seen value1000\dfrac{\text{any seen value}}{1000} if it is clearly linked to the wrong unit, eg mm.
    (a) Use of scale and conversionM1for use of scale and conversion: their 4400044\,000 to 4600046\,000 divided by 10001000, or 8.88.8 to 9.29.2 times their 55. The printed scheme sets those values in quotation marks, which means the candidate's own earlier values may be used here.
    (a) The answerA1for 4545. Allow 4444 to 4646, and it must agree with their measurement. A correct answer scores full marks unless it comes from obviously incorrect working.
    (b) The time from 12 5012\ 50 to 17 1517\ 15B2for 44 (hours) and 2525 (minutes).
    (b) Partial credit(B1)for 44 (hours) or 2525 (minutes).

    Full marks: 5/5

    Question 13, Calculator allowed

    (a) Factorise 155x15 - 5x [1 mark]

    d=5p+7rd = 5p + 7r

    (b) Work out the value of pp when d=35d = 35 and r=2r = 2 [3 marks]

    Beads are sold in small tubs and large tubs.

    There are 1212 beads in a small tub.
    There are 2525 beads in a large tub.

    Oliver buys mm small tubs of beads and nn large tubs of beads.

    (c) (i) Write an expression, in terms of mm and nn, for the total number of tubs of beads Oliver buys. [1 mark]

    (ii) Write an expression, in terms of mm and nn, for the total number of beads Oliver buys. [2 marks]

    (a)(b) p =(c)(i)(c)(ii)
    [Total 7 marks]
    Show solution & mark schemeHide solution & mark scheme

    Question 13 - Exam Solution

    Understanding the Question
    Given
    The expression 155x15 - 5x.
    The formula d=5p+7rd = 5p + 7r, with d=35d = 35 and r=2r = 2.
    1212 beads in a small tub, and 2525 beads in a large tub.
    Oliver buys mm small tubs and nn large tubs.
    Find
    (a) 155x15 - 5x written as a factor outside a bracket. (b) The value of pp. (c)(i) An expression for the total number of tubs. (c)(ii) An expression for the total number of beads.
    Plan the Solution
    • For part (a), find the largest number that divides both 1515 and 5x5x, and take it outside a bracket.
    • For part (b), put d=35d = 35 and r=2r = 2 into the formula, then undo the operations around pp one at a time.
    • For part (c)(i), count the tubs themselves: a tub counts once whether it is small or large, so the sizes play no part.
    • For part (c)(ii), count the beads instead: each small tub carries 1212 and each large tub carries 2525, so multiply first and add afterwards.
    • Both answers to part (c) stay as expressions, because mm and nn are never given a value.
    Worked Solution [7 marks]
    Rule - Factorising: take the highest common factor outside the bracket, so that ab+ac=a(b+c)ab + ac = a(b + c). Rule - Substituting: replace every letter whose value is known, then rearrange until the letter you want stands alone. Rule - Forming an expression: an amount for each item is a multiplication, and separate groups are added.
    Step 1: Find the highest common factor of 1515 and 5x5x
    15=5×315 = 5 \times 3
    5x=5×x5x = 5 \times x
    (Reason: Both terms contain a factor of 55, and no larger number divides 1515, so 55 is the highest common factor of the two terms.)
    Step 2: Write that common factor outside a bracket
    155x=5(3x)15 - 5x = 5(3 - x)
    (Reason: Dividing each term by 55 leaves 33 and x-x, and those go inside the bracket in the same order and with the same signs. The subtraction sign stays where it was.)
    Step 3: Substitute d=35d = 35 and r=2r = 2 into the formula
    35=5p+7×235 = 5p + 7 \times 2
    35=5p+1435 = 5p + 14
    (Reason: Putting the two known values into d=5p+7rd = 5p + 7r turns the formula into an equation containing pp alone, and 7×2=147 \times 2 = 14 is a number that can be worked out straight away.)
    Step 4: Take the known number away from both sides
    5p=3514=215p = 35 - 14 = 21
    (Reason: The 1414 is added to 5p5p on the right-hand side, so subtracting it from both sides leaves 5p5p on its own.)
    Step 5: Divide both sides by 55
    p=215p = \dfrac{21}{5}
    p=4.2p = 4.2
    (Reason: 5p5p means 55 times pp, so dividing both sides by 55 leaves pp. The fraction 215\dfrac{21}{5} does not cancel, and as a decimal it is 4.24.2. The mark scheme accepts either form.)
    Step 6: Count the tubs for part (c)(i)
    m+nm + n
    (Reason: Every tub counts as one tub whatever its size, so the mm small tubs and the nn large tubs give m+nm + n tubs altogether. The 1212 and the 2525 are not used in this part.)
    Step 7: Count the beads each size of tub contributes
    12×m=12m12 \times m = 12m
    25×n=25n25 \times n = 25n
    (Reason: Each small tub holds 1212 beads, so mm of them hold 12m12m beads; each large tub holds 2525 beads, so nn of them hold 25n25n beads.)
    Step 8: Add the two amounts together
    12m+25n12m + 25n
    (Reason: The two sizes of tub are separate groups, so their bead counts add. Nothing further can be collected, because 12m12m and 25n25n are not like terms.)
    (a) 5(3x)5(3 - x)(b) p=215p = \dfrac{21}{5}, that is 4.24.2(c)(i) m+nm + n(c)(ii) 12m+25n12m + 25n
    Verification
    Check 1: Multiply the bracket in part (a) back out. Multiplying the 55 by each term inside must rebuild the expression the question printed. 5(3x)=155x5(3 - x) = 15 - 5x, which is the original expression.
    Check 2: Put p=4.2p = 4.2 and r=2r = 2 back into d=5p+7rd = 5p + 7r. If the value of pp is right, the formula must return the d=35d = 35 the question gave. 5×4.2+7×2=21+14=355 \times 4.2 + 7 \times 2 = 21 + 14 = 35, the value the question gave.
    Check 3: Reach pp the other way round. Rearrange the formula first, giving p=d7r5p = \dfrac{d - 7r}{5}, and only then put the numbers in, so the arithmetic happens in a different order. p=35145=215=4.2p = \dfrac{35 - 14}{5} = \dfrac{21}{5} = 4.2, the same value.
    Check 4: Test part (c) on a case. If Oliver buys 44 small tubs and 33 large tubs, count directly: that is 4+34 + 3 tubs, holding 4×12=484 \times 12 = 48 beads and 3×25=753 \times 25 = 75 beads. The direct count gives 77 tubs and 48+75=12348 + 75 = 123 beads, and the expressions give m+n=7m + n = 7 and 12×4+25×3=12312 \times 4 + 25 \times 3 = 123.
    Mark Scheme Breakdown
    StepMarkDescriptionGot it?
    (a) The factorised expressionB1for 5(3x)5(3 - x).
    (b) A correct substitution, or a correct first step in rearrangingM1for 35=5×p+7×235 = 5 \times p + 7 \times 2, or for 5p=d7r5p = d - 7r, or for d5=p+75r\dfrac{d}{5} = p + \dfrac{7}{5}r, or equivalent. The mark is for a correct substitution in an equation, or for a correct first step in re-arranging.
    (b) Rearranging to reach 5p5p, 5p-5p, or a complete method for ppM1for 5p=35"14"5p = 35 - \text{"14"} or 5p=215p = 21, or for 5p=35+"14"-5p = -35 + \text{"14"} or 5p=21-5p = -21, or for (p=)35"14"5(p =) \dfrac{35 - \text{"14"}}{5} or (p=)35+"14"5(p =) \dfrac{-35 + \text{"14"}}{-5}, or equivalent. The mark is for rearranging to find the value of 5p5p, or the value of 5p-5p, or for a complete method to find the value of pp. The printed scheme sets 1414 in quotation marks, which means the candidate's own earlier value may be used here.
    (b) The value of ppA1for 215\dfrac{21}{5}, or equivalent, eg 4.24.2. A correct answer scores full marks unless it comes from obviously incorrect working.
    (c)(i) The expression for the total number of tubsB1for m+nm + n, or equivalent. Condone s+ls + l.
    (c)(ii) The expression for the total number of beadsB2for the final answer 12m+25n12m + 25n or 25n+12m25n + 12m.
    (c)(ii) Partial credit(B1)for 12m12m or 25n25n. For B2 or B1, condone use of ss and ll for mm and nn respectively.

    Full marks: 7/7

    Question 14, Calculator allowed

    Here is a list of the ingredients needed to make 66 muffins.

    Chocolate muffinsMakes 6 muffins60 g sugar75 g butter1 egg90 g flour65 g chocolate\begin{array}{|c|}\hline \textbf{Chocolate muffins} \\ \text{Makes } 6 \text{ muffins} \\ 60 \text{ g sugar} \\ 75 \text{ g butter} \\ 1 \text{ egg} \\ 90 \text{ g flour} \\ 65 \text{ g chocolate} \\ \hline\end{array}

    Meera makes some of these muffins.
    She uses 450450 g of flour.

    (a) How many muffins does Meera make? [2 marks]

    Claire makes 8484 of these muffins.

    (b) What weight of butter does Claire use? [2 marks]

    Meera and Claire pay a total of 624624 rupees for the ingredients.
    The ratio of the amount Meera pays to the amount Claire pays is 3:53 : 5

    (c) How much does Claire pay? [2 marks]

    (a)(b) g(c) rupees
    [Total 6 marks]
    Show solution & mark schemeHide solution & mark scheme

    Question 14 - Exam Solution

    Understanding the Question
    Given
    One recipe makes 66 muffins from 6060 g sugar, 7575 g butter, 11 egg, 9090 g flour and 6565 g chocolate.
    Meera uses 450450 g of flour.
    Claire makes 8484 muffins.
    Together they pay 624624 rupees, shared in the ratio 3:53 : 5, Meera to Claire.
    Find
    (a) The number of muffins Meera makes. (b) The weight of butter Claire uses. (c) The amount Claire pays.
    Plan the Solution
    • Part (a) works from an ingredient, so count the recipes first: divide the flour used by the flour in one recipe, then multiply by the 66 muffins each recipe makes.
    • Part (b) works the other way round, from the muffins. Divide by 66 to count the recipes, then multiply by the butter in one recipe. Only the butter line of the card is needed.
    • Part (c) is a ratio share, not a recipe. Add the parts to see how many equal parts the money is cut into, find one part, then take Claire's parts.
    • In every part the same idea is doing the work: multiply or divide two matching quantities by the same number and they stay in proportion.
    Worked Solution [6 marks]
    Rule - Scaling a recipe: divide the amount used by the amount in one recipe to find the number of recipes, then multiply any other ingredient by that same number. Rule - Sharing in a ratio: add the parts to find how many equal parts there are, divide the total by that number to find one part, then multiply by the number of parts wanted, so that a:ba : b shares a total TT as Ta+b\dfrac{T}{a + b} for each part.
    Step 1: Work out how many recipes 450450 g of flour makes
    45090=5\dfrac{450}{90} = 5
    (Reason: One recipe uses 9090 g of flour, so dividing the flour used by the flour in one recipe counts the recipes. It divides exactly, giving 55 whole recipes, so nothing is left over and no rounding is needed.)
    Step 2: Multiply by the 66 muffins one recipe makes
    5×6=305 \times 6 = 30
    (Reason: Every recipe makes the same 66 muffins, so 55 recipes make 55 lots of 66. The other four ingredients play no part in this answer.)
    Step 3: Work out how many recipes 8484 muffins is
    846=14\dfrac{84}{6} = 14
    (Reason: Part (b) starts from the muffins rather than from an ingredient, so this time divide by the 66 muffins in one recipe. Again it divides exactly, so Claire makes a whole number of recipes.)
    Step 4: Multiply by the butter in one recipe
    14×75=105014 \times 75 = 1\,050
    (Reason: Each recipe uses 7575 g of butter, so 1414 recipes use 1414 lots of 7575 g. The answer is a weight, so it is measured in grams.)
    Step 5: Split the 624624 rupees into equal parts
    3+5=83 + 5 = 8
    6248=78\dfrac{624}{8} = 78
    (Reason: A ratio of 3:53 : 5 means the money is cut into 88 equal parts, 33 of them Meera's and 55 of them Claire's. Dividing the total by 88 gives the value of one part, in rupees.)
    Step 6: Take Claire's share of those parts
    5×78=3905 \times 78 = 390
    (Reason: Claire's share is 55 of the 88 equal parts, so her payment is that many lots of the value of one part. The question asks for Claire's amount, not Meera's.)
    (a) 3030 muffins(b) 10501\,050 g(c) 390390 rupees
    Verification
    Check 1: Scale part (a) back the other way. If 3030 muffins is right, then it must be a whole number of recipes, and those recipes must use exactly the flour the question gave. 306=5\dfrac{30}{6} = 5 recipes, and 5×90=4505 \times 90 = 450 g of flour, the amount the question gives.
    Check 2: Redo parts (a) and (b) per muffin instead of per recipe, so the arithmetic happens in a different order. One muffin takes 906=15\dfrac{90}{6} = 15 g of flour and 756=12.5\dfrac{75}{6} = 12.5 g of butter. 45015=30\dfrac{450}{15} = 30 muffins, and 84×12.5=105084 \times 12.5 = 1\,050 g of butter, the same two answers.
    Check 3: Work out Meera's payment instead and add the two together. Meera has 33 of the 88 parts, and the two payments must rebuild the total the question gave. 624×38=234624 \times \dfrac{3}{8} = 234 rupees for Meera, and 234+390=624234 + 390 = 624, the total the question gives.
    Check 4: Test that the two payments really are in the ratio the question states, by dividing each of them by the value of one part. 23478=3\dfrac{234}{78} = 3 and 39078=5\dfrac{390}{78} = 5, so the payments are in the ratio 3:53 : 5, Meera to Claire.
    Mark Scheme Breakdown
    StepMarkDescriptionGot it?
    (a) A method to find the number of recipes, or the flour needed for one muffinM1for 45090(=5)\dfrac{450}{90} \, (= 5), or equivalent, or for 906(=15)\dfrac{90}{6} \, (= 15), or equivalent. The mark is for a method to find the number of batches of 66 muffins made, or the amount of flour needed per muffin.
    (a) The number of muffinsA1for 3030. A correct answer scores full marks unless it comes from obviously incorrect working.
    (b) A method to find the number of recipes, or the butter needed for one muffinM1for 846(=14)\dfrac{84}{6} \, (= 14), or equivalent, or for 756(=12.5)\dfrac{75}{6} \, (= 12.5), or equivalent. The mark is for a method to find the number of batches of 66 muffins made, or the amount of butter needed per muffin.
    (b) The weight of butterA1for 10501\,050. A correct answer scores full marks unless it comes from obviously incorrect working.
    (c) A method to find one part of the ratio, three parts, or a complete methodM1for 6243+5(=78)\dfrac{624}{3 + 5} \, (= 78), or equivalent, or for 624×33+5(=234)624 \times \dfrac{3}{3 + 5} \, (= 234), or equivalent, or for 624×53+5624 \times \dfrac{5}{3 + 5}, or equivalent. The mark is for a method to find the value of one part of the ratio, or for a method to find the value of three parts, or for a complete method.
    (c) The amount Claire paysA1for 390390. A correct answer scores full marks unless it comes from obviously incorrect working.

    Full marks: 6/6

    Question 15, Calculator allowed

    Marcus has some wooden beads in a tin.

    77 of the beads are yellow
    55 of the beads are white
    The rest of the beads are purple

    Marcus is going to take at random a bead from the tin.

    The probability that the bead is purple is 25\dfrac{2}{5}

    Work out the number of purple beads in the tin. [3 marks]

    [Total 3 marks]
    Show solution & mark schemeHide solution & mark scheme

    Question 15 - Exam Solution

    Understanding the Question
    Given
    77 of the beads are yellow and 55 of them are white. Every other bead in the tin is purple.
    One bead is taken at random, and the probability that it is purple is 25\dfrac{2}{5}.
    The total number of beads in the tin is not given.
    Find
    The number of purple beads in the tin. It is a whole number, so the working should land on one - here it comes out at 88.
    Plan the Solution
    • Add the yellow and the white beads. That gives 1212 beads whose colour is already known, and they are exactly the beads that are not purple.
    • Turn the probability round. If 25\dfrac{2}{5} of the tin is purple, work out what fraction of the tin is not purple.
    • Use that fraction to scale the known count up to the whole tin: find one fifth of the beads first, then all five fifths.
    • Subtract the beads that are not purple to leave the purple ones, then check that the probability comes back out.
    Worked Solution [3 marks]
    Rule - Probability of one random pick: number of beads of that colourtotal number of beads\dfrac{\text{number of beads of that colour}}{\text{total number of beads}}. The probability that something happens and the probability that it does not happen always add to 11.
    Step 1: Count the beads that are not purple
    7+5=127 + 5 = 12
    (Reason: (Reason: yellow and white are the only other colours in the tin, so those 1212 beads are precisely the ones that are not purple.))
    Step 2: Work out the fraction that is not purple
    125=351 - \dfrac{2}{5} = \dfrac{3}{5}
    (Reason: (Reason: purple and not purple are the only two outcomes, so their probabilities add to 11. Taking 25\dfrac{2}{5} away leaves the share of the tin that is not purple.))
    Step 3: Scale up to the whole tin
    123=4\dfrac{12}{3} = 4
    4×5=204 \times 5 = 20
    (Reason: (Reason: think of the tin as 55 equal parts. The 1212 beads that are not purple fill 33 of them, so dividing by 33 gives one part, and all 55 parts together make the whole tin.))
    Step 4: Subtract to leave the purple beads
    2012=820 - 12 = 8
    (Reason: (Reason: the tin holds 2020 beads and 1212 of them are yellow or white, so everything left over is purple.))
    88 purple beads
    Verification
    Check 1: Put the answer back into the question. The tin would hold 8+12=208 + 12 = 20 beads altogether, of which 88 are purple, so the probability of taking a purple bead is 820\dfrac{8}{20}. 820=25\dfrac{8}{20} = \dfrac{2}{5}, which is the probability the question gives.
    Check 2: Check the split a different way, as a ratio. The tin divides 88 purple to 1212 not purple, and cancelling that ratio should give the 2:32 : 3 split that sits behind 25\dfrac{2}{5}. 84=2\dfrac{8}{4} = 2 and 124=3\dfrac{12}{4} = 3, so the ratio is 2:32 : 3 as expected.
    Check 3: Check the other colour instead. Out of 2020 beads, 1212 are not purple, and that share must be the fraction found in Step 2 and must complete the probability to 11. 1220=35\dfrac{12}{20} = \dfrac{3}{5} and 25+35=1\dfrac{2}{5} + \dfrac{3}{5} = 1.
    Mark Scheme Breakdown
    StepMarkDescriptionGot it?
    Proportion, ratio or equationM1For finding the proportion of the beads that are not purple (this may be a percentage or a decimal), 125  (=35)1 - \dfrac{2}{5} \; (= \dfrac{3}{5}) oe, or for a correct ratio (allow the ratio in any order), (purple : yellow + white =) 2:32 : 3
    Values in a ratio do not need labels, but if labels are used they must be correct. This is implied by, for example, 1212 beads being 33 parts.
    OR for forming a correct equation in terms of the number of purple beads or the total number of beads (allow the use of any letter), eg nn+12=25\dfrac{n}{n + 12} = \dfrac{2}{5} or t12t=25\dfrac{t - 12}{t} = \dfrac{2}{5}
    A method to reach one fifth of the beads, or the totalM1For a method to find the value of one fifth of the beads, 7+53  (=4)\dfrac{7 + 5}{3} \; (= 4) oe, or for a method to find the total number of beads in the tin, 7+53×5  (=20)\dfrac{7 + 5}{3} \times 5 \; (= 20) oe, or 7+535  (=20)\dfrac{7 + 5}{\dfrac{3}{5}} \; (= 20) oe.
    The printed scheme puts the 33 and the 35\dfrac{3}{5} in quotation marks, which means the candidate's own value from the first mark may be used here, so a follow-through on it is allowed.
    OR for a correct method to solve a correct equation, eg n=12×252n = \dfrac{12 \times 2}{5 - 2} or t=5×1252t = \dfrac{5 \times 12}{5 - 2}
    Answer 88A1cao. A correct answer scores full marks unless it comes from obvious incorrect working.
    Note: an answer of 820\dfrac{8}{20} scores M1M1A0 - the total has been found but the question asked for the number of purple beads, not the probability.

    Full marks: 3/3

    Question 16, Calculator allowed

    The diagram shows a quadrilateral ACDFACDF.

    F26 cmEDA18 cmB12 cmCNot drawn accurately

    In this quadrilateral, ABEFABEF is a trapezium and BCDEBCDE is a parallelogram.

    FE=26FE = 26 cm, AB=18AB = 18 cm, BC=12BC = 12 cm

    Parallelogram BCDEBCDE has an area of 9696 cm².

    Find the area of trapezium ABEFABEF. [3 marks]

    cm²
    [Total 3 marks]
    Show solution & mark schemeHide solution & mark scheme

    Question 16 - Exam Solution

    Understanding the Question
    Given
    A quadrilateral ACDFACDF made of a trapezium ABEFABEF and a parallelogram BCDEBCDE, joined along BEBE.
    FE=26FE = 26 cm, AB=18AB = 18 cm, BC=12BC = 12 cm.
    Area of parallelogram BCDEBCDE = 9696 cm².
    Find
    The area of the trapezium ABEFABEF, in cm².
    Plan the Solution
    • FF, EE and DD sit on one straight line, and AA, BB and CC sit on another. The two lines are parallel, so the trapezium and the parallelogram have the same perpendicular height.
    • The parallelogram is the shape whose area is known, so use it to find that height first: its base is BC=12BC = 12 cm.
    • Then feed that height into the trapezium, whose parallel sides are AB=18AB = 18 cm and FE=26FE = 26 cm.
    • Watch which lengths belong to which shape: BCBC is a side of the parallelogram only, and never goes inside the trapezium formula.
    Worked Solution [3 marks]
    Parallelogram: area=base×h\text{area} = \text{base} \times h.
    Trapezium: area=12(a+b)h\text{area} = \dfrac{1}{2}(a + b)h, where aa and bb are the two parallel sides and hh is the perpendicular distance between them.
    Two shapes standing between the same pair of parallel lines share one value of hh.
    Step 1: Find the height from the parallelogram
    12×h=9612 \times h = 96
    9612=8\dfrac{96}{12} = 8
    (Reason: A parallelogram's area is base times perpendicular height, so 1212 lots of hh make 9696, giving h=8h = 8 cm. Because FEDFED and ABCABC are parallel lines, this same 88 cm is the height of the trapezium.)
    Step 2: Put that height into the trapezium formula
    12×(18+26)×8=12×44×8=176\dfrac{1}{2} \times (18 + 26) \times 8 = \dfrac{1}{2} \times 44 \times 8 = 176
    (Reason: The trapezium's parallel sides are ABAB and FEFE, so those are the pair that goes inside the bracket. Half of 18+2618 + 26 is the average width of the trapezium, and multiplying that average width by the height gives the area.)
    176176 cm²
    Verification
    Check 1: Compare the two shapes without finding the height at all. The trapezium's average width is 18+262=22\dfrac{18 + 26}{2} = 22 cm against the parallelogram's 1212 cm, and both stand on the same height, so the areas are in the ratio 22:1222 : 12. 96×2212=17696 \times \dfrac{22}{12} = 176 cm², which agrees.
    Check 2: Cut the trapezium up instead of using its formula. Sliding ABAB up to the top line leaves a parallelogram 1818 cm by 88 cm, plus a triangle whose base is 2618=826 - 18 = 8 cm on the same height. 18×8+12×8×8=144+32=17618 \times 8 + \dfrac{1}{2} \times 8 \times 8 = 144 + 32 = 176 cm², which agrees.
    Check 3: Work out the whole quadrilateral a different way. EDED equals BCBC, which is 1212 cm, because BCDEBCDE is a parallelogram. So FDFD is 26+12=3826 + 12 = 38 cm, ACAC is 18+12=3018 + 12 = 30 cm, and ACDFACDF is itself a trapezium on the same height. 12×(38+30)×8=272\dfrac{1}{2} \times (38 + 30) \times 8 = 272 cm² for the whole quadrilateral, and taking the parallelogram off leaves 27296=176272 - 96 = 176 cm², which agrees.
    Mark Scheme Breakdown
    StepMarkDescriptionGot it?
    9612  (=8)\dfrac{96}{12} \; (= 8)M1for a complete method to find the height of the parallelogram
    12(18+26)×[8]\dfrac{1}{2}(18 + 26) \times [8]M1for a method to find the area of the trapezium (do not allow missing brackets unless recovered), where [8][8] is what they believe to be the height of the trapezium and must be positive. Do not allow [8][8] to be 1212 or 11
    176176A1Correct answer scores full marks (unless from obvious incorrect working)

    Full marks: 3/3

    Continue to questions 17 to 27

    The remaining 11 questions, with the same full worked solutions and mark schemes

    Frequently asked questions

    There are 27 questions worth 100 marks in total, sat over 2 hours. It is Foundation tier and a calculator is allowed throughout, unlike UK GCSE Maths, where one paper is non-calculator.

    Foundation tier targets grades 1 to 5, so grades 6 to 9 are only available on Higher tier. About 40 per cent of the questions are targeted at grades 4 and 5 and appear on both Paper 2FR and Paper 2HR, so the top of the Foundation paper overlaps with the bottom of the Higher paper.

    Yes. The paper states in its own instructions that without sufficient working, correct answers may be awarded no marks. Several questions ask you to show your working clearly or to show clear algebraic working, and on those a bare answer scores nothing. That is why every solution here sets out the method mark by mark.

    Yes, a Foundation tier formulae sheet is printed in the paper. It gives the area of a trapezium, the volume of a prism, the volume of a cylinder and the curved surface area of a cylinder. Everything else has to be recalled, so Pythagoras theorem, the angle facts and the percentage methods used on this paper are not provided. Nothing may be written on the formulae page.

    Both are published by Pearson Edexcel and are linked directly from this page as PDF files. The solutions here are original: every question has been reworded, but all the numbers match the original paper, so the answers agree with the official mark scheme. This resource reproduces neither the exam paper nor the official mark scheme.

    Keep revising

    Once you have worked through this paper, read what the IGCSE is and how it is graded, or compare Edexcel 4MA1 with Cambridge 0580 if you are still choosing a board. Check the IGCSE grade boundaries to set your target, and if the exam is close, the four-week IGCSE Maths revision plan sets out what to do week by week.

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