A towel, when bleached, was found to have lost 20% of its length and 10% of its breadth. What is the percentage of decrease in area?

A towel, when bleached, was found to have lost 20% of its length and 10% of its breadth. What is the percentage of decrease in area?

A 10%

B 10.08%

C 20%

D 28%

Solution

Correct Answer: Option D

Let original length = x and original breadth = y.

Decrease in area

= xy -

80

x

x

90

y