Problema Solution

The Royal Fruit Company produces two types of fruit drinks. The first type is 50% pure fruit juice and the second type is 80% pure fruit juice. The company is attempting to produce a fruit drink that contains 60% pure fruit juice. How many of the the two existing types of drink must be used to make 120 pints of a mixture that is 60% pure fruit juice?

Answer provided by our tutors

let


x = pints of the first type 50% pure fruit juice

y = pints of the second type 80% pure fruit juice


the two existing types of drink must be used to make 120 pints of a mixture that is 60% pure fruit juice


x + y = 120


0.50x + 0.80y = 0.60*120


by solving the above system of equations we get


x = 80 pints


y = 40 pints


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80 pints of the first 50% type juice should be mixed with 40 pints of the second 80% type of pure fruit juice.