a a\,a is directly proportional to b b\,b
When a=7,b=28a = 7, b = 28a=7,b=28
Find the value of b b\,b when a=5a = 5a=5
Practise CIE IGCSE Maths Direct and Inverse Proportion with exam-style questions for Core and Extended tier. 22 questions, matched to the CIE IGCSE Maths (0580) specification and written in Paper 1 and Paper 3 (Core) or Paper 2 and Paper 4 (Extended) 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.