The length of a square is increased by 40%while breadth is decreased by 40% find the ration of area of the resulting rectangle so formeffto that of the original square.

Asked by Shrutikamal663 | 12th Dec, 2018, 08:41: PM

Expert Answer:

Let the side of squar is a.
length of rectangle = 1.4a ; breadth of rectangle = 0.6a ;
 
Area of rectangle = 1.4a*0.6a = 0.84a2 sq. units
 
ratio of area of rectangle to that of square = 0.84a2 : a2 = 84:100 = 21:25

Answered by Thiyagarajan K | 12th Dec, 2018, 09:57: PM

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