The percentage increase in the area of a rectangle, if each
The percentage increase in the area of a rectangle, if each of its sides is increased by 20% is
A40%
B42%
C44%
D46%
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Answer : 44%
Explanation:
Let original length = x metres and original breadth = y metres.
Original area = xy m2Increased length =120100x and Increased breadth =120100y
New area =120100x×120100y
=3625xy m2
The difference between the Original area and New area is:
=3625xy−xy
=1125xy
Increase % =1125xyxy×100
= 44%
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