A brand of shampoo is available in two different bottles.
900 ml for £5.50£5.50£5.50
400 ml for £2.50 £2.50\,£2.50
Work out which bottle offers the best value for money.
You must show your working.
Practise Edexcel GCSE Maths Best Buy Questions with exam-style questions for Foundation and Higher tier. 24 questions, matched to the Edexcel GCSE Maths (1MA1) specification and written in Paper 1, Paper 2 and Paper 3 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.