r r\,r is inversely proportional to s s\,s
When r=12r = 12r=12, s=3s = 3s=3
Find the value of r r\,r when s=9s = 9s=9
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.