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Discussion :: Alligation or Mixture

  1. A dishonest milkman professes to sell his milk at cost price but he mixes it with water and thereby gains 25%. The percentage of water in the mixture is:

    2. A.

    4% 
    B.

    6\(\frac { 1 } { 4 } \)%
    C.

    20%
    D.

    25%

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    Answer : Option C

    Explanation :

    Let C.P. of 1 litre milk be Re. 1

    Then, S.P. of 1 litre of mixture = Re. 1, Gain = 25%.

    By the rule of alligation, we have:

     

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