y y\,y is inversely proportional to the cube of x x\,x
When y=16y = 16y=16, x=0.5x = 0.5x=0.5
Find the value of x x\,x when y=250y = 250y=250
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.