12. Compound Interest Questions for Competitive Exams

This is the aptitude questions and answers section on "Compound Interest" with explanation for various interview, competitive examination and ... examination and various entrance test (CAT, GATE, GRE, MAT, Bank Exam, Railway Exam etc.) 

Compound Interest 

1. There is 60% increase in an amount in 6 years at simple interest. What will be the compound interest of Rs. 12,000 after 3 years at the same rate?

(1) 3972
(2) 3962
(3) 3982
(4) 390

2. The compound interest on a certain sum for 2 years at 10% per annum is Rs. 525. The simple interest on the same sum for double the time at half the rate percent per annum is:

(1) 100
(2) 300
(3) 400
(4) 500

3. The difference between simple and compound interests compounded annually on a certain sum of money for 2 years at 4% per annum is Re. 1. The sum is:

(1) 525
(2) 625
(3) 550
(4) 575

4. If the difference between the simple interest and compound interests on some principal amount at 20% for 3 years is Rs. 48, then the principal amount is

(1) 375
(2) 400
(3)450
(4) 425

5. Amit invested an amount of Rs.17400 for two years. Find the rate of compound interest that will fetch him an amount of Rs.1783.50 at the end of two years?

(1) 2% p.a.
(2) 3% p.a.
(3) 4% p.a.
(4) 5% p.a.

6. Divide Rs. 1301 between A and B, so that the amount of A after 7 years is equal to the amount of B after 9 years, the interest being compounded at 4% per annum.

(1) 500 Rs
(2) 525 Rs
(3) 625 Rs
(4) 650 Rs

7. The present worth of Rs.169 due in 2 years at 4% per annum compound interest is

(1) 155 Rs
(2) 156.25 Rs
(3) 156 Rs
(4) 157.25 Rs

8. On a sum of money, the simple interest for 2 years is Rs. 660,while the compound interest is Rs.696.30,the rate of interest being the same in both the cases. The rate of interest is

(1) 10%
(2) 11%
(3) 12%
(4) 13%

9. Effective annual rate of interest corresponding to nominal rate of 6% per annum compounded half yearly will be

(1) 6.05%
(2) 6.09%
(3) 7%
(4) 7.05%

10. A money lender lends Rs.2000 for six months at 20% p.a. rate. It the interest is reckoned quarterly than find the amount given after time limit.

(1) 1505
(2) 1885
(3) 2195
(4) 2205

Ans :-

1-1,        2-4,      3-2,     4-1,     5-4,
6-3,        7-2,      8-2,     9-2,    10-4

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