Question

In a solution,the ratio of salt water by volume is 1:4 .What is the percent of salt in the total solution?

Answer 1

Let x = percent of solution that is salt.

Then 4x = percent of solution that is water.

x + 4x = 1

5x = 1, so x = .2 = 20%

The total solution is 20% salt and 80% water.