Multiple Choice Questions on ABCD is a square If the sides AB and CD are increased by 30 sides BC and AD are increased by 20 then........... for CDS Exam Preparation

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Multiple Choice Questions

ABCD is a square If the sides AB and CD are increased by 30 sides BC and AD are increased by 20 then...........

Quantitative Aptitude (CDS) Percentage
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    ABCD is a square. If the sides AB and CD are increased by 30%, sides BC and AD are increased by 20%, then the area of the resulting rectangle exceeds the area of the square by

    50%

    Incorrect Answer

    52%

    Incorrect Answer

    54%

    Incorrect Answer

    56%

    Correct Answer
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    Explanation:

    Let initially the side of square be ‘a’.
    Area of square = a2

    Area of rectangle = 1.3 a × 1.2 a
    Percentage increase = 1.56a2 in Area
    =(1.56a2−a2)/a2 ×100
    = (1.56 – 1)×100 = 56%

    By: Munesh Kumari
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