SOLUTION: A chemist wants to get a 50% acid solution by mixing 8 liters of 60% acid solution with 20% acid solution. How much 20% solution does the chemist need?

Question 1109160: A chemist wants to get a 50% acid solution by mixing 8 liters of 60% acid solution with 20% acid solution. How much 20% solution does the chemist need?
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
Let = liters of 20% solution needed
= liters of acid in 20% solution
= liters of acid in 60% solution
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2.667 liters of 20% solution are needed
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check:

OK
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