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SSC Sample Paper SSC CGL - Sample Paper-1

  • question_answer
    In a group of cows and hens, the number of legs are 14 more than twice the number of heads. The number of cows is

    A)  5                                

    B)  7

    C)  10                               

    D)  12

    Correct Answer: B

    Solution :

    Let the number of cows be x and the number of hens by y. Then,             \[4x+2y=2(x+y)+14\] \[\Rightarrow \]   \[4x+2y=2x+2y+14\] \[\Rightarrow \]   \[2x=14\] \[\Rightarrow \] x = 7


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