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    Question

    If the mean proportion of 0.49 and 2.25 is 'k', then find

    the value of '4k'.
    A 2.8 Correct Answer Incorrect Answer
    B 4.2 Correct Answer Incorrect Answer
    C 5.6 Correct Answer Incorrect Answer
    D 6.3 Correct Answer Incorrect Answer

    Solution

    k = √(0.49 × 2.25) = √1.1025 = 1.05
    Required value = 4 × 1.05 = 4.2

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