Working out density of liquid c

Question

Liquid A has a density of 0.7g/cm^3.
Liquid B has a density of 1.6g/cm^3.

140 g of liquid A and 128g of liquid B are mixed to make liquid C.

What is the density of liquid C?

Answer 1

Liquid A has a density of 0.7g/cm^3.
Liquid B has a density of 1.6g/cm^3.

140 g of liquid A and 128g of liquid B are mixed to make liquid C

140g(1 cm^3/0.7g) = 200 cm^3

128g(1 cm^3/1.6 g) = 80 cm^3

140 g + 128 g = 268 g

268g/280 cm^3 = .96 g/ cm^3