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    Question

    The mean proportional of 8 and 50 is

    _____.
    A 16 Correct Answer Incorrect Answer
    B 20 Correct Answer Incorrect Answer
    C 26 Correct Answer Incorrect Answer
    D 14 Correct Answer Incorrect Answer

    Solution

    We know that, Mean proportion of 'a' and 'b' = тИЪ(a ├Ч b)
    So, Mean proportion = тИЪ(8 ├Ч 50) = тИЪ400 = 20

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