g g\,g is directly proportional to the square root of h h\,h
When g=21,h=16g = 21, h = 16g=21,h=16
Verify that the value of h h\,h when g=3g = 3g=3 is 1649\displaystyle \frac{16}{49}4916
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.