Practicing Success

Target Exam

CUET

Subject

General Test

Chapter

Numerical Ability

Topic

Simple Interest

Question:

In a particular time, a sum becomes 3 times of itself on simple interest at the rate of 10% per annum. What is the rate of interest if the same sum becomes 5 times of itself in the same duration?

Options:

12.5%

25%

20%

15%

Correct Answer:

20%

Explanation:

                Principal   :  Amount   :    S.I.   ⇒     Rate

3 times ⇒        1       :        3       :     2     ⇒      10%

                                                         ⇓ ×2          ⇓ ×2

5 times ⇒        1       :        5       :     4     ⇒      20%