Foundation June 2019 Paper 1 Q21
21 James and Elizabeth buy some clothes.
James buys 5 shirts and 4 jumpers. He pays £163.
Elizabeth buys 3 shirts and 2 jumpers. She pays £89.
Assume that each shirt has the same cost and that each jumper has the same cost.
Work out the cost of one shirt and the cost of one jumper.
You must show your working.
[5]
| Answer | Marks | Part marks and guidance |
|---|---|---|
| [\(s =\)] 15 with correct working [\(j =\)] 22 | 5 | Correct answer from trial and improvement scores 5 B4 for 1 correct answer with correct working OR M1 for \(5s + 4j = 163\) oe M1 for \(3s + 2j = 89\) oe M1 for method to find a common coefficient, allow 1 arithmetic error M1 for correct method to eliminate 1 variable, allow one arithmetic error – a sign error is not an arithmetic error If zero scored SC2 for correct answers with no working |