A towel, when bleached, lost 20% of its length and 20% of its breadth. What is the percentage decrease in area?  Options.
A) 24%
B) 36 %
C) 32%
D) 54%
E) 64%
percentage change in area   =(−20−20+(20×20)/100)%=−36%   i.e., area is decreased by 36%   ANSWER:36 %
<result>B</result>
A towel, when bleached, lost 20% of its length and 20% of its breadth. What is the percentage decrease in area?