SOLUTION: hi tutor,,please help me again for this question...2.how much pure alcohol must be added to a 12L of a 20% alcohol sulotion to make a solution that is 60% alcohol? thank you..

Question 648054: hi tutor,,please help me again for this question...2.how much pure alcohol must be added to a 12L of a 20% alcohol sulotion to make a solution that is 60% alcohol?
thank you..
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
Let = liters of pure alcohol to be added
liters of pure alcohol in 20% solution
--------------

12 liters of pure alcohol need to be added
check:

OK
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