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10th Class Mathematics Real Numbers Question Bank MCQs - Real Number

  • question_answer
    If HCF (a, b) = 12 and \[a\times b=1800\], then LCM (a, b) =

    A) 3600

    B) 900

    C) 150

    D) 90

    Correct Answer: C

    Solution :

    We know that
    \[HCF\times LCM\] = Product of two numbers
    \[\Rightarrow \,\,12\times LCM\left( a,\,b \right)=1800\]
    \[\Rightarrow \,\,\,\,LCM\left( a,\,b \right)=\frac{1800}{12}=150\]
     


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