CAPE Physics Unit 1 · 2007 · Paper 1 · Question Q44

An alloy is made of a mixture of two metals. Metal A has a density of 8900\text{ kg m}^{-3} and Metal B has a density of 7800\text{ kg m}^{-3}. What is the density of the alloy if Metal A has three times the volume of Metal B?

1. (A)8350\text{ kg m}^{-3}
2. (B)8625\text{ kg m}^{-3}
3. (C)8075\text{ kg m}^{-3}
4. (D)7950\text{ kg m}^{-3}