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    Question

    Find difference between the LCM and HCF of 14, 42 and

    77.
    A 469 Correct Answer Incorrect Answer
    B 462 Correct Answer Incorrect Answer
    C 455 Correct Answer Incorrect Answer
    D 458 Correct Answer Incorrect Answer

    Solution

    LCM of (14, 42 and 77) = (2 ├Ч 3 ├Ч 7 ├Ч 11) = 462HCF of (14, 42 and 77) = 7Required difference = 462 тАУ 7 = 455

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