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    Question

    Find the value of 'a' in the given data if the mean of

    the given data is 27. 20, 25, 30, 28, 26, 24, a, 29, 22, 23
    A 41 Correct Answer Incorrect Answer
    B 42 Correct Answer Incorrect Answer
    C 43 Correct Answer Incorrect Answer
    D 44 Correct Answer Incorrect Answer

    Solution

    Sum of each term of given data = 10 × 27 = 270 So, 20 + 25 + 30 + 28 + 26 + 24 + a + 29 + 22 + 23 = 270 Or, 227 + a = 270 Or, 'a' = 43 Hence, option C.

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