1. A sum of money at compound interest will amount to 650 at the end of the first year and 676 at the end of the second year. The amount of money is ?

1,300

650

1,250

625

Answer: 625

Explanation:


2. A sum of money at compound interest amounts to thrice itself in 3 years. In how many years will it be 9 times itself ?

9 years

27 years

6 years

3 years

Answer: 6 years

Explanation:


3. A sum borrowed under compound interest doubles itself in 10 years. When will it become fourfold of itself at the same rate of interest ?

15 years

20 years

24 years

40 years

Answer: 20 years

Explanation:


4. If the amount is 2.25 times of the sum after 2 years at compound interest (compound annually), the rate of interest per annum is ?

25%

30%

45%

50%

Answer: 50%

Explanation:


5. On what sum of money will the difference between S.I and C.I for 2 years at 5% per annum be equal to 25 ?

10,000

10,500

9,500

9000

Answer: 10,000

Explanation:


6. The difference between simple and compound interests on a sum of money at 4% per annum for 2 years is 8. The sum is ?

400

800

4,000

5,000

Answer: 5,000

Explanation:


7. The difference between simple and compound interest on a certain sum of money for 2 years at 4 per cent per annum is 1. The sum of money is ?

600

625

560

650

Answer: 625

Explanation:


8. The compound interest on a certain sum of money for 2 years at 5% per annum is 410. The simple interest on the same sum at the same rate and for the same time is ?

400

300

350

405

Answer: 400

Explanation:


9. If the compound interest on a certain sum for 2 years at 4% p.a. is 102, the simple interest at the same rate of interest for two years would be ?

200

50

150

100

Answer: 100

Explanation:


10. At a certain rate per annum, the simple interest on a sum of money for one year is 260 and the compound interest on the same sum for two years is 540.80. The rate of interest per annum is ?

4%

6%

8%

10%

Answer: 8%

Explanation: