Practicing Success

Target Exam

CUET

Subject

General Test

Chapter

Numerical Ability

Topic

Compound Interest

Question:

If the rate of interest is 4% for the first year, 5% for the second year and 6% for the third year, then find the compound interest on ₹10,000 for 3 years, if interest is compounded annually?

Options:

₹1,580.25

₹1,575.20

₹1,500.00

₹1,570.50

Correct Answer:

₹1,575.20

Explanation:

The Formula that we used here is -

Amount = P$(1 \;+\; \frac{R}{100})^t$

= 10000 [ 1 + \(\frac{4}{100}\)] × [ 1 + \(\frac{5}{100}\)]× [ 1 + \(\frac{6}{100}\)]

= 10000 × [ \(\frac{26}{25}\)] × [ \(\frac{21}{20}\)]× [  \(\frac{53}{50}\)]

= 11575.2

Compound interest = Amount - Principal

= 11575.2 - 10000

= Rs. 1575.20