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    Question

    Calculate the difference between the Least Common Multiple

    and the Highest Common Factor of 12, 30, and 45.
    A 177 Correct Answer Incorrect Answer
    B 166 Correct Answer Incorrect Answer
    C 180 Correct Answer Incorrect Answer
    D 120 Correct Answer Incorrect Answer

    Solution

    ATQ,

    LCM of (12, 30, and 45) = (2 x 2 x 3 x 5) = 180

    HCF of (12, 30, and 45) = 3

    Required difference = 180 - 3 = 177

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