Question

One canned juice drink is 25​%orange​ juice; another is 10​%orange juice. how many liters of each should be mixed together in order to get 15lthat is 21​%orange​ juice?

Answer 1

Qty · % = Total
Drink 1: x .25 = .25x
Drink 2: 15 - x .10 = .10(15 - x)
Mixture: 15 .21 = .25x + .10(15 - x)

(15)(.21) = .25x + 1.5 - .10x
3.15 = .15x + 1.5
1.65 = .15x
11 = x

Drink 1 (25%) is 11 liters
Drink 2 (10%) is 15 - 11 = 4 liters