Exam-Style Question on Mensuration
A mathematics exam-style question with a worked solution that can be revealed gradually
Question id: 246. This question is similar to one that appeared on a GCSE Higher paper (specimen) for 2017. The use of a calculator is allowed.
Harper mixes 300g of material \(X\) and 150g of material \(Y\) to make 450g of a compound material.
Material \(X\) has a density of 20g/cm3.
Material \(Y\) has a density of 15g/cm3.
Work out the density of the compound material.
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