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    Question

    If the product of two numbers is 420 and their HCF is 7,

    then find the LCM of the given two numbers.
    A 50 Correct Answer Incorrect Answer
    B 55 Correct Answer Incorrect Answer
    C 65 Correct Answer Incorrect Answer
    D 60 Correct Answer Incorrect Answer

    Solution

    We know that for two given numbers,
    L.C.M X H.C.F = Product of the given two numbers
    ATQ,
    L.C.M X 7 = 420
    So, L.C.M = (420/7) = 60

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