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    Question

    The LCM for two prime numbers x and y, (x > y) is 319.

    The value of (2y + x) :
    A 51 Correct Answer Incorrect Answer
    B 31 Correct Answer Incorrect Answer
    C 71 Correct Answer Incorrect Answer
    D 61 Correct Answer Incorrect Answer

    Solution

    LCM of x and y = 319 => xy = 29 × 11 => x = 29; y = 11 => 2y + x = 2 × 11 + 29 = 22 + 29 = 51

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