y y\,y is inversely proportional to the cube of x x\,x
When y=250y = 250y=250, x=0.2x = 0.2x=0.2
Find the value of y y\,y when x=0.5x = 0.5x=0.5
Practise Edexcel GCSE Maths Direct and Inverse Proportion with exam-style questions for Foundation and Higher tier. 96 questions, matched to the Edexcel GCSE Maths (1MA1) specification and written in Paper 1, Paper 2 and Paper 3 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.