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    The LCM of two numbers is 20 times of their HCF and LCM + HCF = 2520. What will be the difference of LCM and HCF ?
    Question

    The LCM of two numbers is 20 times of their HCF and LCM + HCF = 2520. What will be the difference of LCM and HCF ?

    A.

    2420

    B.

    2380

    C.

    2320

    D.

    2280

    Correct option is D

    Let the HCF of the two numbers be x. Then, their LCM is 20x. From the given information, we have:
    x + 20x = 2520
    or, 21x = 2520
    or, x = 120
    Therefore, the difference between LCM and HCF is:
    20x - x
    = 19x
    = 19 * 120
    = 2280.

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