Question

7 qt. of a 27% saline solution was mixed

with 3 qt. of a 17% saline solution. What
is the concentration of the mixture?

Answer 1

24% saline

Explanation:

Find how much saline is in both solutions:

7(0.27)

= 1.89

3(0.17)

= 0.51

Add this together:

1.89 + 0.51

= 2.4

Since there are 10 quarts in total, the concentration of the mixture can be found by dividing 2.4 by 10:

2.4/10

= 0.24

So, the concentration of the mixture is 24% saline