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Railways Sample Paper RRB (Group D) Sample Test Paper-8

  • question_answer
    The H.C.F. and L.C.M. of two numbers are 12 and 336 respectively. If one of the numbers is 84, the other is

    A)  36                   

    B)  48

    C)  72                   

    D)  96

    Correct Answer: B

    Solution :

    [b] First number \[\times \] second number = HCF \[\times \]LCM \[\Rightarrow \,\,\,84\times \]Second number = 12\[\times \]336 \[\therefore \] Second number\[=\frac{12\times 336}{84}=48\] \[p\times q=HCF\times LCM\] \[q=\frac{12\times 336}{84}=48\]


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