One canned juice drink is 15% orange juice; another is 10% orange juice. How many liters of each should be mixed together in order to get 5L that is 11% orange juice?

Question

How many liters of the 15% orange juice should be in the mixture__ L ?

How many liters of the 10% orange juice should be in the mixture__ L ?

Answer 1

volume of 15% OJ --- x L
volume of 10% OH --- 5-x L

.15x + .1(5-x) = .11(5)
times 100 , don't like them decimals!
15x + 10(5-x) = 55
15x + 50 - 10x = 55
5x = 5
x = 1

So 1 L of the 15% stuff and
4 L of the 10% stuff