120 customers at a café order either Tea, Coffee, or Hot Chocolate.
70 of the customers are adults and the rest are children. 30 adults order Coffee. 25 adults and 15 children order Tea. A total of 22 customers order Hot Chocolate.
Work out how many children order Hot Chocolate.
38 exam-style questions on Edexcel GCSE Maths Two Way Tables. Each one has a worked solution and a mark scheme showing where the marks go.