Two different jars of the same coffee are available in the supermarket
200 grams for £4.20£4.20£4.20
300 grams for £5.70 £5.70\,£5.70
Work out which jar offers the best value for money. You must show your working.
84 exam-style questions on OCR GCSE Maths Best Buy Questions. Each one has a worked solution and a mark scheme showing where the marks go.