300 cm3 of metal Alpha and 700 cm3 of metal Beta are melted and mixed to form an alloy.
Metal Alpha has a density of 2.5 g/cm3.
Metal Beta has a density of 3.2 g/cm3.
Work out the density of the alloy.
203 exam-style questions on OCR GCSE Maths Speed and Density. Each one has a worked solution and a mark scheme showing where the marks go.