Royal Fruit Company

Question

The Royal Fruit Company produces two types of fruit drinks. The first type is 60%

 pure fruit juice, and the second type is 85%

 pure fruit juice. The company is attempting to produce a fruit drink that contains 70%

 pure fruit juice. How many pints of each of the two existing types of drink must be used to make 30

 pints of a mixture that is 70%

 pure fruit juice?

Answer 1

.85x + .6(30-x) = 30(.7)

.25x = 21-18 = 3

x= 12 pints of 85%

mixed with 18 pints of 60%

give a mixture of 30 pints of 70%