If each of the dimensions of a rectangle is increased by 100%, its area is increased by : (1) 100% (2) 200% (3) 300% (4) 400%
If each of the dimensions of a rectangle is increased by 100%, its area is increased by :
(1) 100% (2) 200% (3) 300% (4) 400%
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(3) Let the initial length and width be l & b respectively.
Then the initial area = l × b
According to the question,
New length and width will be 2 l and 2b respectively.
New area = 2 l × 2b = 4 l b
Increment in area
4lb-lb/lb x 100%= 300%
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