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 20L that is 6% orange juice?

Answer 1

`1` litre of `25%` orange juice mixed with `19` litre of `5%` orange juice to get `20` litre of `6%` orange juice.

Explanation:

Let `x` litre of `25%` orange juice mixed with `(20-x)` litre of `5%` orange juice to get `20` litre of `6%` orange juice.

So by condition given , `x*0.25+(20-x)*0.05= 20*0.06 or 0.25x-0.05x = 1.2-1 or 0.2x = 0.2 or x=1 :. (20-x)=20-1=19`

Therefore `1` litre of `25%` orange juice mixed with `19` litre of `5%` orange juice to get `20` litre of `6%` orange juice.[Ans]