It takes 5 machines 6 hours to produce 1000 DVDs
Work out how long it would take 4 machines to produce 1000 DVDs.
Practise Edexcel IGCSE Maths Direct and Inverse Proportion with exam-style questions for IGCSE Maths. 22 questions, matched to the Edexcel IGCSE Maths (4MA1) specification and written in Paper 1 and Paper 2 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.