Here is a list of ingredients for making 15 small cakes.
210 g of margarine
180 g of sugar
200 g of flour
1 teaspoon baking powder
2 eggs
Joe is going to make 30 of the small cakes. Work out how much margarine he needs.
115 exam-style questions on Eduqas GCSE Maths Proportion. Each one has a worked solution and a mark scheme showing where the marks go.