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    Question

    The average of two consecutive even numbers is 77. If the

    smaller number is increased by 30% and the larger number is decreased by 30%, then find the difference between the numbers obtaine
    A 42.4 Correct Answer Incorrect Answer
    B 44.2 Correct Answer Incorrect Answer
    C 45 Correct Answer Incorrect Answer
    D 43.5 Correct Answer Incorrect Answer
    E 46 Correct Answer Incorrect Answer

    Solution

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

    ATQ,
    x + 1 = 77 => x = 76

    Required difference = 1.3 × 76 - 0.7 × 78 = 98.8 - 54.6 = 44.2

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