e e\,e is directly proportional to f f\,f
When e=5,f=45e = 5, f = 45e=5,f=45
Find the value of f f\,f when e=8e = 8e=8
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.