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    Question

    The LCM and the HCF of the numbers 42 and 60 are in the

    ratio:
    A 70:1 Correct Answer Incorrect Answer
    B 40:1 Correct Answer Incorrect Answer
    C 80:1 Correct Answer Incorrect Answer
    D 60:1 Correct Answer Incorrect Answer

    Solution

    L.C.M. of 42 and 60 = 420 H.C. F. of 42 and 60 = 6 Required ratio = 420:6 = 70:1

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