The histogram shows information about the mass of suitcases at an airport.

24 suitcases have a mass between 10 and 15 kg.
Work out an estimate for the number of suitcases with a mass of more than 18 kg.
Explain why your answer to part a is only an estimate.
24 exam-style questions on AQA GCSE Maths Histograms. Each one has a worked solution and a mark scheme showing where the marks go.