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Railways Sample Paper RRB (Assistant Loco Pilot & Technician) Sample Test Paper-9

  • question_answer
    How many times H.C.F. of 24, 48 and 72 is contained in their L.C.M.?

    A)  2 times            

    B)  4 times

    C)  5 times          

    D)       6 times

    Correct Answer: D

    Solution :

     \[24\,\,\,\,=\,\,\,\,2\times 2\times 2\times 3\]      \[48\,\,\,\,=\,\,\,\,2\times 2\times 2\times 2\times 3\]      \[72\,\,\,\,\,\,=\,\,\,2\times 2\times \,2\times 3\times 3\] Required H.C.F \[=2\times 2\times 2\times 3=24=144=24\times 6\] It is clear that H.C.E of 24, 48 and 72 is contained 6 times in their L.C.M.


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