SOLUTION: A man buys 12 lts of liquid which contains 20% of the SUBSTANCE and the rest is water. He then mixes it with 10 lts of another mixture with 30% of SUBSTANCE.What is the % of wate

Question 851244: A man buys 12 lts of liquid which contains 20% of the SUBSTANCE and the rest is water. He then mixes it with
10 lts of another mixture with 30% of SUBSTANCE.What is the % of water in the new mixture?

Answer by josgarithmetic(39618) (Show Source): You can put this solution on YOUR website!
I changed one of the words. It is already understood that both starting solutions are "liquids" of a substance dissolved in water.

, just a direct computation.
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percent SUBSTANCE------------computed as , 24.5454545454....
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