Physics (AS & A Level) · Oct / Nov 2019 · Paper 11 · Question 14

In a large container in an oil refinery, three oils of different densities are mixed. No chemical activity occurs. The mixture consists of: 1200 kg of oil of density 1100 kg m–3 1500 kg of oil of density 860 kg m–3 4000 kg of oil of density 910 kg m–3. What is the density of the mixture?

1. A927 kg m–3
2. B933 kg m–3
3. C957 kg m–3
4. D1045 kg m–3

As printed in the paper