how many liters of each should be mixed together in order to get 20 liters that is 10% orange juice?

Question

one canned juice drink is 25% orange juice; another is 5% orange juice. how many liters of each should be mixed together in order to get 20 liters that is 10% orange juice?

Answer 1

the ratio is 3 to 1 which means for every 4 liters, we need 3 liters of 10% and 1 liter of 25%

 

So 3/4 of 20 = 15 liters and 1/4 of 20 = 5 liters