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    Question

    If a = 100, (a + b) = 400 and (c – b) = 80, find the

    average of the three numbers a, b and c.
    A 300 Correct Answer Incorrect Answer
    B 280 Correct Answer Incorrect Answer
    C 260 Correct Answer Incorrect Answer
    D 342 Correct Answer Incorrect Answer

    Solution

    ATQ, Given, a = 100, (a + b) = 400 and (c – b) = 80 Therefore, b = 400 – 100 = 300 And, c = 300 + 80 = 380 Required average = (100 + 300 + 380)/3 = 260

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