Potatoes cost £9 for a 12.5 kg bag at a farm shop. The same type of potatoes cost £1.83 for a 2.5 kg bag at a supermarket.
Where are the potatoes the better value, at the farm shop or at the supermarket? You must show your working.
5 exam-style questions on CIE IGCSE Maths Best Buy Questions. Each one has a worked solution and a mark scheme showing where the marks go.