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    Question

    The average of six numbers is 82. When two more numbers

    are included, the average increases by 4. Find the average of the numbers included.
    A 94 Correct Answer Incorrect Answer
    B 96 Correct Answer Incorrect Answer
    C 98 Correct Answer Incorrect Answer
    D 100 Correct Answer Incorrect Answer

    Solution

    Sum of the 6 numbers = 82 × 6 = 492
    New average = 82 + 4 = 86
    Sum of 8 numbers = 86 × 8 = 688
    Sum of new 2 numbers = 688 - 492 = 196
    Required average = 196 ÷ 2 = 98

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