Question 1134075: how many liters of a 90% acid solution must be mixed with a 15% acid solution to get 600 liters of a 80% solution? Answer by Alan3354(69443) (Show Source):
You can put this solution on YOUR website! how many liters of a 90% acid solution must be mixed with a 15% acid solution to get 600 liters of a 80% solution?
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n = liters of 90%
f = liters of 15%
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n + f = 600 ---------- total solution
90n + 15f = 600*80---- total acid
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etc
