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SSC Sample Paper SSC CGL - Sample Paper-20

  • question_answer
    The LCM and the HCF of the numbers 28 and 42 are in the ratio

    A) 6 : 1                 

    B) 2 : 3

    C) 3 : 2                             

    D) 7 : 2

    Correct Answer: A

    Solution :

    Let \[x=28=7\times 2\times 2\] and       \[y=42=7\times 3\times 2\] \[\therefore \] HCF of x and \[~y=7\times 2=14\] and LCM of x and \[y=7\times 2\times 2\times 3=84\] \[\therefore \] Required ratio \[=84:14=6:1\]          


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