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    Question

    Three numbers are in the ratio 2:5:7 respectively. If

    the HCF of the numbers is 6, then find the LCM of the numbers.
    A 540 Correct Answer Incorrect Answer
    B 420 Correct Answer Incorrect Answer
    C 360 Correct Answer Incorrect Answer
    D 600 Correct Answer Incorrect Answer

    Solution

    Numbers:
    2 × 6 = 12
    5 × 6 = 30
    7 × 6 = 42
    LCM of 12, 30, and 42 = 420

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