Physics (AS & A Level) · May / June 2022 · Paper 11 · Question 15

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