# A person preparing medicine wants to convert 15% of alcohol solution into 32% of alcohol solution. Find how much pure alcohol should be mix with 400ml of 15% alcohol solution to obtain it.

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by kakkar6644

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2015-11-29T20:50:22+05:30

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See...in 400 ml of alcoholic solution, percent of alcohol is 15%
so, volume of alcohol= 15% of 400 ml
=60 ml
now, 15% is 60 ml, so 1% = 60/15= 4 ml
so , 32 % = 32×4 = 128 ml
volume added= 128 - 60 = 68 ml

hope this  explaination makes u understand :)
i have to edit the answer
how to edit??
see...in 400 ml of alcoholic solution, percent of alcohol is 15%
so, volume of alcohol= 15% of 400 ml
=60 ml
now suppose x ml is mixed then 32% of (400+x)= 60 +x , on solving u will get 100 ml
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