A meal deal includes a sandwich and a drink. There are 5 sandwiches and 7 drinks to choose from.
Work out the total number of ways of choosing a sandwich and a drink. Hence, work out the total number of ways of choosing a sandwich and a drink if the number of sandwiches is doubled.
181 exam-style questions on OCR GCSE Maths The Product Rule for Counting. Each one has a worked solution and a mark scheme showing where the marks go.