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    Question

    The average marks of 15

    candidates were reported as 84. However, it was later discovered that the marks of three candidates were incorrectly recorded as 38, 64, and 72 instead of their actual scores of 83, 46, and 27. Calculate the correct average marks obtained by these candidates.
    A 48.5 Correct Answer Incorrect Answer
    B 82.8 Correct Answer Incorrect Answer
    C 77.2 Correct Answer Incorrect Answer
    D 66.5 Correct Answer Incorrect Answer

    Solution

    ATQ, Desired average = {15 x 84 + (83 - 38) - (64 - 46) - (72 - 27)}/15 = 82.8

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