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 NABARD Assistant Manager Exam Preparation

Quantitative Aptitude (CDS) NABARD Assistant Manager Exam

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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%

52%

54%

56%

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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