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- If the length of a rectangle is halved and its breadth is tripled, what is the percentage change in its area?
Question 1:
If the length of a rectangle is halved and its breadth is tripled, what is the percentage change in its area?
A. 25% increase
B. 25% decrease
C. 50% decrease
D. 50% increase
Feedback Length is halved.
i.e., length is decreased by 50%
Breadth is tripled i.e., breadth is increased by 200%
Change in area=(-50+200-(50×200)/100)%=50%
i.e., area is increased by 50%
i.e., length is decreased by 50%
Breadth is tripled i.e., breadth is increased by 200%
Change in area=(-50+200-(50×200)/100)%=50%
i.e., area is increased by 50%
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