A shop sells washing powder in 700g packs.
Jacob has no washing powder. He estimates that he does 3 washes a week, using 45g each wash.
Jacob wants to buy enough washing powder for 14 weeks.
How many packs of washing powder does Jacob need to buy?
Hence, calculate the amount of washing powder left after 14 weeks.
218 exam-style questions on OCR GCSE Maths Calculation Problems. Each one has a worked solution and a mark scheme showing where the marks go.