If the length of a rectangle is halved and its breadth is tripled, what is the percentage change in its area? Choose the correct choice from the following answers.
A) 30 B) 40 C) 50 D) 60 E) 70
Length is halved.   i.e., length is decreased by 50%   Breadth is tripled   i.e., breadth is increased by 200%   Formula for 50hange in area is:   =(-x+y-xy/100)%   =(−50+200−50×200/100)%=50%   i.e., area is increased by 50%   Answer is 50.
<result>C</result>
If the length of a rectangle is halved and its breadth is tripled, what is the percentage change in its area?