Physics (AS & A Level) · May / June 2016 · Paper 12 · Question 13

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. B957 kg m⁻³
3. C1010 kg m⁻³
4. D1080 kg m⁻³

As printed in the paper