# Exam-Style Question on Area

## A mathematics exam-style question with a worked solution that can be revealed gradually

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Question id: 645. This question is similar to one that appeared on a GCSE Higher paper in 2020. The use of a calculator is allowed.

Jack knows that he needs 4 litres of paint to cover a rectangular wall that is 3m by 8m.

Paint is sold in 3 litre tins.

Jack wants to paint a rectangular wall that is 4m by 20m.

He has 5 tins of paint.

(a) Has Jack got enough paint to cover the wall that is 4m by 20m? You must show all your working.

Jack opens the 5 tins of paint. He finds that 4 of the tins contain 3 litres of paint. The other tin contains 1.5 litres of paint.

(b) Does this affect whether Jack has enough paint to cover his wall? Give a reason for your answer.

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