SOLUTION: How much water must be removed from 80 liters of a 30% sugar solution to produce a 40% solution

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Question 811782: How much water must be removed from 80 liters of a 30% sugar solution to produce a 40% solution
Answer by richwmiller(17219) About Me  (Show Source):
You can put this solution on YOUR website!
.3*80=x*.4
.3/.4*80=x
3/4*80=x
60=x
keep 60 remove 20
remove 20 liters
.3*(80)=(80-x)*.4
x=20
remove 20 liters