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    Question

    The average of two consecutive even numbers is 69. If

    the smaller number is increased by 10% and the larger number is decreased by 10%, then find the difference between the numbers obtaine
    A 10.8 Correct Answer Incorrect Answer
    B 12 Correct Answer Incorrect Answer
    C 11.8 Correct Answer Incorrect Answer
    D 13 Correct Answer Incorrect Answer

    Solution

    Let the two consecutive even numbers be x and x + 2.

    ATQ,
    x + 1 = 69 => x = 68

    Required difference = 1.1 ├Ч 68 - 0.9 ├Ч 70 = 74.8 - 63 = 11.8

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