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

  • question_answer
                HCF of two numbers is 23 and their LCM is 1449. If one of the numbers is 161, then the other numbers is:

    A) 207

    B) 307

    C) 1449

    D) None of these

    Correct Answer: A

    Solution :

    Sol.      [a] Let the other number be x.
    Product of two numbers \[=HCF\times LCM\]of two numbers
    \[\therefore \,\,\,\,\,\,\,\,\,\,\,\,\,\,x\times 161=23\times 1449\]
    \[\Rightarrow \,\,\,\,\,\,\,\,\,\,x=\frac{23\times 1449}{161}\Rightarrow x=207\]


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