Two different bottles of the same laundry detergent are available.
1.5 litres for £3.60£3.60£3.60
2.5 litres for £5.50 £5.50\,£5.50
Work out which bottle offers the best value for money. You must show your working.
84 exam-style questions on WJEC GCSE Maths Best Buy Questions. Each one has a worked solution and a mark scheme showing where the marks go.