A) 25% increase
B) 50% decrease
C) 50% increase
D) 25% decrease
Correct Answer: C
Solution :
Original length and breath = x and y, then Original area = xy New length and breath\[=\frac{x}{2}\]and 3y, then New area\[=\left( \frac{x}{2}\times 3y \right)=\frac{3}{2}xy\] \[\therefore \]Percentage increase \[=\left( \frac{1}{2}xy\times \frac{1}{xy}\times 100 \right)=50%\]You need to login to perform this action.
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