How much water must be added to 20 ml of alcohol to make it 20% soluti – InterviewSolution

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1.	How much water must be added to 20 ml of alcohol to make it 20% solution ?
Answer» make it 20% solution means alcohol should be 20% in solution. so if we add 80 ml water in 20ml alcohol solution will be 80+20=100 ml so alcohol will be 20/100*100=20% so 80 ml water must be added.

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