Here is a list of ingredients for making 12 small cakes.
180 g of margarine
180 g of sugar
200 g of flour
1 teaspoon baking powder
2 eggs
Joe is going to make 24 of the small cakes. Verify that he needs 360 g of margarine.
Sharon is going to make 18 of the small cakes. Verify that she needs 300 g of flour.
115 exam-style questions on OCR GCSE Maths Proportion. Each one has a worked solution and a mark scheme showing where the marks go.