Exam-Style Question on Mensuration
A mathematics exam-style question with a worked solution that can be revealed gradually
Question id: 180. This question is similar to one that appeared on a GCSE Higher paper (specimen) for 2017. The use of a calculator is allowed.
A batch of coins is made from an alloy consisting of 270g of copper mixed with 90g of nickel.
(a) Work out the volume of copper used in the alloy.
(b) What is the density of the alloy to three significant figures?
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