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    Subject

    Quantitative Aptitude

    Topic

    Simplification

    Directions: What approximate value should come in place of question mark (?) in the following questions? (Note: You are not expected to calculate the exact value) 22302=?\sqrt[2]{{2230}} = ?

    ক)
    54
    খ)
    59
    গ)
    41
    ঘ)
    37
    ঙ)
    47

    Explanation

    22302=  2209+112=  472+112≈  4722\begin{array}{l} \sqrt[2]{{2230}}\\ = \;\sqrt[2]{{2209 + 11}}\\ = \;\sqrt[2]{{{{47}^2} + 11}}\\ \approx \;\sqrt[2]{{{{47}^2}}} \end{array} ≈ 47

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