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    Question

    Five rods are kept in a line such that any of the rods

    is thrice the length of the previous one. The average length of the rods is about
    A 16 times the first rod Correct Answer Incorrect Answer
    B 24 times the first rod Correct Answer Incorrect Answer
    C 9 times the first rod Correct Answer Incorrect Answer
    D 36 times the first rod Correct Answer Incorrect Answer

    Solution

    The correct answer is B

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