a a dishonest milkman claims to sell milk at cost price but the milk is adulterated with 20% of water . what is his profit percent
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Given :
Gain = 20 %
According to the question :
Let the CP of 1 litre of milk be Rs. 1
SP of 1 litre of mixture = Rs. 1
CP of 1 litre mixture = 100 / 125 × 1
= 4 / 5.
1 / 5 th of Milk.
so, Ratio of Milk to water = 4 / 5 : 1 / 5
= 4 : 1.
Hence, % of water in the mixture = 1 / 5 × 100 %
= 20 %
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