The length and breadth of a square are increased by 40% and 30% respectively. The area of the resulting rectangle exceeds the area of the square by:
Options:
A . 42%
B . 62%
C . 82%
D . none of these
Answer: Option C
Side of the square = 100 m New length = 140 m New breadth = 130 m Increase in area = [(140 x 130) - (100 x 100)] = 8200 Sq.m Increase percent = (8200/(100×100)×100) % = 82 %
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