SOLUTION: There is 20 gallons of 20% o.j. How many gallons must be mixed with 80% o.j. to make the mixture have 50% o.j. drink?

Question 710162: There is 20 gallons of 20% o.j. How many gallons must be mixed with 80% o.j. to make the mixture have 50% o.j. drink?
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
Let = gallons of 80% OJ needed
= gallons of OJ in 80% OJ
gallons of OJ in 20% OJ
---------------------------------

20 gallons of 80% OJ is needed
check:

OK

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