x x\,x is inversely proportional to the square root of y y\,y
When x=18x = 18x=18, y=25y = 25y=25
Find the value of x x\,x when y=81y = 81y=81
164 exam-style questions on Eduqas GCSE Maths Direct and Inverse Proportion. Each one has a worked solution and a mark scheme showing where the marks go.