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    Question

    The HCF of two numbers is 9 and their LCM is 540. If one

    of the numbers is 45, find the other number.
    A 135 Correct Answer Incorrect Answer
    B 108 Correct Answer Incorrect Answer
    C 125 Correct Answer Incorrect Answer
    D 99 Correct Answer Incorrect Answer

    Solution

    For two numbers a and b: a × b = HCF × LCM So 45 × b = 9 × 540 = 4860 b = 4860 / 45 = 108 Answer: The other number is 108.

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