SOLUTION: how many quarts of pure antifreeze must be added to 2 quarts of a 10% antifreeze solution to obtain a 50% solution?

SOLUTION: how many quarts of pure antifreeze must be added to 2 quarts of a 10% antifreeze solution to obtain a 50% solution?

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Question 643971: how many quarts of pure antifreeze must be added to 2 quarts of a 10% antifreeze solution to obtain a 50% solution?
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
Let = quarts of pure antifreeze needed
quarts of pure antifreeze in 10% solution

1.6 quarts of pure antifreeze must be added
check:

OK
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