Two packs of toilet rolls are available in the supermarket
15 toilet rolls for £4.95£4.95£4.95
7 toilet rolls for £2.24 £2.24\,£2.24
Work out the exact cost per toilet roll for each pack and hence which pack 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.