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Discussion :: Chain Rule

  1. In a dairy farm, 40 cows eat 40 bags of husk in 40 days. In how many days one cow will eat one bag of husk?

  2. A.

    1

    B.

    \(\frac { 1 } {40 }\)

    C.

    40

    D.

    80

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    Answer : Option C

    Explanation :

    Let the required number of days be x.

    Less cows, More days (Indirect Proportion)

    Less bags, Less days (Direct Proportion)

     

    Cows 1 : 40 :: 40 : x
    Bags 40 : 1

     1 x 40 x x = 40 x 1 x 40

     x = 40.


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