A pet shop sells dog food in 15 kg bags for £24£24£24. An online store sells the same dog food in 3 kg bags for £4.90£4.90£4.90.
Which store offers the better value for money, the pet shop or the online store? You must show your working.
24 exam-style questions on Edexcel GCSE Maths Best Buy Questions. Each one has a worked solution and a mark scheme showing where the marks go.