Subject

    Quantitative Aptitude

    Topic

    Areas & Volumes

    The ratio between the perimeter and the breadth of a rectangle is 5 : 1. If the area of the rectangle is 216 sq. cm, what is the length of the rectangle?

    ক)
    16
    খ)
    18
    গ)
    20
    ঘ)
    22

    Explanation

    2(l+b)b=51\frac{2\left(l+b\right)}b=\frac51 => 2l + 2b = 5b     => 3 b = 2 l b=(2/3)l Then, Area = 216 cm2 => l x b = 216     => l x (2/3)l =216 l = 18 cm.

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