Here is a list of ingredients for making 20 small cakes.
180 g of margarine
180 g of sugar
250 g of flour
1 teaspoon baking powder
2 eggs
Sharon is going to make 24 of the small cakes. Work out how much flour she needs.
115 exam-style questions on OCR GCSE Maths Proportion. Each one has a worked solution and a mark scheme showing where the marks go.