c c\,c is inversely proportional to d d\,d
When c=5c = 5c=5, d=12d = 12d=12
Find the value of c c\,c when d=4d = 4d=4
164 exam-style questions on OCR GCSE Maths Direct and Inverse Proportion. Each one has a worked solution and a mark scheme showing where the marks go.