A towel, when bleached, was found to have lost 20% of its length and 10% of its breadth. The percentage of decrease in area is ?	Choose the correct choice from the following choices.
A) 88%
B) 38%
C) 68%
D) 28%
E) 24%
Let original length = x   and original width = y   28%ecrease in area will be   =xy−(80x100×90y100)=(xy−1825xy)=725xy28%ecrease = (7xy25xy×100)%=28%   Answer: 28%
<result>D</result>
A towel, when bleached, was found to have lost 20% of its length and 10% of its breadth. The percentage of decrease in area is ?