A brand of shampoo is available in two different bottles.
900 ml for £5.50
400 ml for £2.50
Work out which bottle offers the best value for money. You must show your working.
Practise CIE IGCSE Maths Best Buy Questions with exam-style questions for Core and Extended tier. 5 questions, matched to the CIE IGCSE Maths (0580) specification and written in Paper 1 and Paper 3 (Core) or Paper 2 and Paper 4 (Extended) 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.