SSC Sample Paper SSC CGL - Sample Paper-17

  • question_answer
    The HCF and LCM of two numbers are 11 and 385 respectively. The numbers are

    A) 11 and 385 or 55 and 77

    B) 55 and 77

    C) 11 and 385           

    D) 22 and 770

    Correct Answer: A

    Solution :

    \[11=11\times 1\] \[385=11\times 5\times 7\] \[\therefore \]      \[\text{LCM}=11\times 5\times 7=385\]             \[\text{HCF=11}\]             \[55=11\times 5\]             \[77=11\times 7\] \[\text{LCM}=11\times 5\times 7=385\] \[\text{HCF}=11\] \[\Rightarrow \]   \[(11,385)\] or \[(55,\,\,77)\]


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