Practicing Success

Target Exam

CUET

Subject

General Test

Chapter

Quantitative Reasoning

Topic

Mensuration: 2D

Question:

A blanket, when bleached, decreases in length by 20% and in breadth by 15%. What is the percentage decrease in its area?

Options:

32%

42%

35%

45%

Correct Answer:

32%

Explanation:

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%