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What is the percentage of water in mixture if adding the mater in the milk gave the gain of 25% to the milkman?

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A dishonest milkman professes to sell his milk at C.P. but he mixes it with water and thereby gains 25%. What is the percentage of water in the mixture?

posted Aug 28, 2015 by anonymous

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1 Answer

+1 vote

20% water
Every liter of pure milk he needs to sell for 1 / 1.25 = 0.8 liter.
He then needs to supplement it to 1 liter. Therefore the milk he sells is 0.8 l milk and 0.2 l water.

answer Aug 29, 2015 by Jcm
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