## Exam Style Question## Worked solutions to typical exam type questions that you can reveal gradually |

Question id: 246. This question is similar to one that appeared in 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/cm^{3}.

Material \(Y\) has a density of 15g/cm^{3}.

Work out the density of the compound material.

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