Dermot bakes 420 cakes. He bakes only vanilla cakes, banana cakes and lemon cakes. 120 of the cakes are vanilla cakes. 153 of the cakes are lemon cakes. Work out the percentage of cakes that are banana cakes.
199 exam-style questions on Eduqas GCSE Maths Percentages. Each one has a worked solution and a mark scheme showing where the marks go.