SOLUTION: How many liters of a 40% acid solution must be added to 12 liters of a 20% solution to obtain a 25% solution?
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Question 280713: How many liters of a 40% acid solution must be added to 12 liters of a 20% solution to obtain a 25% solution?
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Found 2 solutions by marz, Alan3354:
Answer by marz(1) (Show Source): You can put this solution on YOUR website!
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Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
.4x + 12*.2 = (12+x)*.25
Solve for x
x is the amount of 40% added
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