SOLUTION: How many liters of pure water must be added to 40 liters of a 30% alcohol solution to make a 20% alcohol solution? I have tried X+40(.3)=.2(40+X) but i keep getting it wrong.

Question 725387: How many liters of pure water must be added to 40 liters of a 30% alcohol solution to make a 20% alcohol solution?
I have tried X+40(.3)=.2(40+X) but i keep getting it wrong.
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
liters of alcohol in solution
Let = liters of water to be added

20 liters of water should be added
check:

OK

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