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SSC Sample Paper Mock Test-19 SSC CGL Tear-II Paper-1

  • question_answer
    Three numbers are in the ratio 3:4:5 and their LCM is 2400. Their HCF is

    A) 40

    B)  80

    C)  120     

    D)  200

    Correct Answer: A

    Solution :

    Let the numbers be \[3x,\]\[4x\]and \[5x.\] Then,    \[LCM=60x\] \[60x=2400\]\[\Rightarrow \]\[x=40\] \[\therefore \]The numbers are 120, 160 and 200. Clearly, their HCF is 40.


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