SOLUTION: 300 liters of a 76% antifreeze solution had to be reduced to a 20% solution. How many liters of antifreeze should be extracted?

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Question 147541: 300 liters of a 76% antifreeze solution had to be reduced to a 20% solution. How many liters of antifreeze should be extracted?
Answer by jojo14344(1513) About Me  (Show Source):
You can put this solution on YOUR website!
Ratio and Proportion amigo.
let "x"= amount in liters
so, (300/0.76) = (x/0.20)
x=(300*0.20) / 0.76
x=79 liters
therefore 300-79+=+221+liters to be Extracted
Thank you