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    5. What is the average of first 39 multiples of 3.9?

    Question

    What is the average of first 39 multiples of

    3.9?
    A 78 Correct Answer Incorrect Answer
    B 49.6 Correct Answer Incorrect Answer
    C 40.6 Correct Answer Incorrect Answer
    D 59.5 Correct Answer Incorrect Answer

    Solution

    First term = 3.9 x 1 = 3.9 Last term = 3.9 x 39 = 152.1 Required average = (3.9 + 152.1)/2 = 78

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    • RBI Grade B

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