Subject

    Quantitative Aptitude

    Topic

    Areas & Volumes

    An error 2% in excess is made while measuring the side of a square. The percentage of error in the calculated area of the square is:

    ক)
    1.04
    খ)
    2.04
    গ)
    3.04
    ঘ)
    4.04

    Explanation

    100 cm is read as 102 cm. A1 = (100*100)Sq.cm A2 = (102*102)Sq.cm (A2 - A1) = 1022−1002102^2-100^2 = (102 + 100) x (102 - 100) = 404 sq.cm.

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