SOLUTION: a solution of 150 litres contains 40% alcohol. how many litres of liquid should be added to reduce the alcohol percentage to 25%?

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Question 976889: a solution of 150 litres contains 40% alcohol. how many litres of liquid should be added to reduce the alcohol percentage to 25%?
Answer by FrankM(1040) About Me  (Show Source):
You can put this solution on YOUR website!
150l * 40% = 60l alcohol.
We need a total 240l liquid to dilute to 25%. Add 90l