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2 May, 16:05

A person buys milk of rs. 8.50 per litre and add water to it. He sells the mixture at the same price and earns a profit of 11.11%. Find out how much water did he add to each litre of milk

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  1. 2 May, 19:07
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    We know that 1/9 = 0.1111

    Cost price + profit = selling price

    Lets assume the cost price of milk is x, the calculation would be:

    x + 1/9 x = 1

    10/9 x = 1

    x = 9/10

    The amount of water would be : 1 - 9/10 = 1/10 = 10%
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