Practicing Success

Target Exam

CUET

Subject

General Test

Chapter

Numerical Ability

Topic

Percentages

Question:

If radius of a circle is increased by 5%, then the increase in its area is:

Options:

10.25%

5.75%

10%

5%

Correct Answer:

10.25%

Explanation:

Total increased % in area = r% + r% + \(\frac{r × r}{100}\) %

                                     = 5% + 5% + \(\frac{5× 5}{100}\)%

                                     =10% + .25% ⇒ 10.25%