It takes 10 builders 18 days to lay 5000 bricks.
Work out how long it would take 15 builders to lay 5000 bricks.
Practise OCR GCSE Maths Direct and Inverse Proportion with exam-style questions for Foundation and Higher tier. 96 questions, matched to the OCR GCSE Maths (J560) specification and written in the written papers style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.