Question

    There are three distinct numbers ‘m’, ‘n’ and

    ‘o’. If, m = 210, (m + n) = 510 and (o – n) = 60, then find the average of m, n and o.
    A 290 Correct Answer Incorrect Answer
    B 270 Correct Answer Incorrect Answer
    C 260 Correct Answer Incorrect Answer
    D 300 Correct Answer Incorrect Answer

    Solution

    Given, m = 210, (m + n) = 510 and (o – n) = 60 Therefore, n = 510 – 210 = 300 And, o = 300 + 60 = 360 Required average = (210 + 300 + 360)/3 = 870/3 = 290

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