Question

A 120-liter solution that is 5% salt is mixed with an
80-liter solution that is 15% salt. The combined
solution is what percent salt?

Answer 1

Let’s add the solution and salt first
120 liter + 80 liter = 200
5% + 15% = 20%

The ratio is 20:200

20/200 = .10

The answer is 10% salt