A laboratory beaker contains 600mL of water (density 1.00g/cm3) and 300mL of cooking oil (density 0.85g/cm3), with the two liquids remaining separate.
Calculate the overall density of the combined contents of the beaker.
a) 0.90g/cm3
b) 0.95g/cm3
c) 0.93g/cm3
d) 0.98g/cm3