A blanket, when bleached, decreases in length by 20% and in breadth by 15%. What is the percentage decrease in its area?
Answer & explanation
Correct answer: option 1
In this types of questions when one side is decreased and other is also decreased then the total percent change in area is given by =
15 + 20 - \(\frac{15 × 20 }{100}\) = 32%