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    1. Home
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    3. Quantitative Aptitude
    4. Ratio and proportion
    5. The mean proportional of 3 and 147 is _____.

    Question

    The mean proportional of 3 and 147 is

    _____.
    A 21 Correct Answer Incorrect Answer
    B 27 Correct Answer Incorrect Answer
    C 19 Correct Answer Incorrect Answer
    D 25 Correct Answer Incorrect Answer

    Solution

    We know that, Mean proportion of 'a' and 'b' = √(a × b)
    So, Mean proportion = √(3 × 147) = √441 = 21

    Practice Next
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