200 members of a sports club either play tennis or play badminton.
55% of the members play tennis. 48% of the members are over 50 years old. 12% of the members are over 50 years old and play badminton.
Work out how many members under 50 years old play tennis.
159 exam-style questions on OCR GCSE Maths Two Way Tables. Each one has a worked solution and a mark scheme showing where the marks go.