x x\,x is inversely proportional to the square root of y y\,y
When x=12,y=9x = 12, y = 9x=12,y=9
Find the value of x x\,x when y=81y = 81y=81
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Markscheme
Direct and Inverse Proportion Questions
10 exam-style questions on Oxford AQA IGCSE Maths Direct and Inverse Proportion. Each one has a worked solution and a mark scheme showing where the marks go.