Question
The length of a rectangle is increased by a=30% and breadth is decreased by b=25% . What is the percentage change in the area of the rectangle?
Answer: Option B
:
B
Answer = option b
Initial area =l×b
Final area =1.3l×0.75b
=0.975l×b
% change =(1−0.975)×100=2.5% decrease
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:
B
Answer = option b
Initial area =l×b
Final area =1.3l×0.75b
=0.975l×b
% change =(1−0.975)×100=2.5% decrease
Was this answer helpful ?
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