1. If Rs. 64 accounts to Rs. 83.20 in 2 years, what will Rs. 86 amount to in 4 years at the same rate per cent pr annum?
(a) Rs. 115.80
(b) Rs. 127.70
(c) Rs. 127.40
(d) Rs. 51.60

2. The simple interest on a certain sum of money at the rate of 5% p.a. for 8 years is Rs. 840. At what rate of interest the same amount of interest can be received on the same sum after 5 years?
(a) 10%
(b) 8%
(c) 9%
(d) 12%

3. The interest on a certain deposit at 4.5% p.a. is Rs. 202.50 in one year. How much will the additional interest in one year be on the same deposit at 5% p.a.?
(a) Rs. 30.25
(b) Rs. 22.50
(c) Rs. 25
(d) Rs. 52.75

4. A sum invested at 5% simple interest per annum grows to Rs. 504 in 4 years. The same amount at 10% simple interest per annum in 2½ years will grow to:
(a) Rs. 530
(b) Rs. 555
(c) Rs. 525
(d) Rs. 650

5. What will be the ratio of simple interest earned by certain amount at the same rate of interest for 6 years and that for 9 years?
(a) 5 : 3
(b) 4 : 7
(c) 2 : 3
(d) data inadequate

6. Nitin borrowed some money at the rate of 6% p.a. for the first three years, 9% p.a. for the next five years and 13% p.a. for the period beyond eight years. If the total interest paid by him at the end of eleven years is Rs. 8160, how much money did he borrow?
(a) Rs. 8000
(b) Rs. 13,000
(c) Rs. 11,000
(d) data inadequate

7. The simple interest on a sum of money will be Rs. 600 after 10 years. If the principal is trebled after 5 years, what will be the total interest at the end of the tenth-year?
(a) Rs. 800
(b) Rs. 1100
(c) Rs. 1200
(d) Rs. 1400

8. The simple interest on Rs. 10 for 4 months at the rate of 3 paise per rupee per month is:
(a) Rs. 1.20
(b) Rs. 1.90
(c) Rs. 3.60
(d) Rs. 4.80

9. An automobile financier claims to be lending money at simple interest, but he includes the interest every six months for calculating the principal. If he is charging an interest of 10%, the effective rate of interest becomes:
(a) 13%
(b) 10.25%
(c) 15%
(d) 11%

10. A sum of money at simple interest amounts to Rs. 815 in 3 years and to Rs. 854 in 4 years. The sumis:
(a) Rs. 850
(b) Rs. 790
(c) Rs. 698
(d) Rs. 800

11. A sum of money lent out at simple interest amounts to Rs. 720 after 2 years and to Rs. 1020 after a further period of 5 years. The sum is:
(a) Rs. 640
(b) Rs. 600
(c) Rs. 700
(d) Rs. 730

12. The rate at which a sum becomes four times of itself in 15 years at S.I., will be:
(a) 18%
(b) 17.2%
(c) 20%
(d) 27%

13. If a sum of money at simple interest doubles in 6 years, it will become 4 times in:
(a) 17 years
(b) 15 years
(c) 16 years
(d) 18 years

14. A sum of money trebles itself in 15 years 6months. In how many years would it double itself?
(a) 5 years 3 months
(b) 7 years 9 months
(c) 10 years 3 months
(d) 11 years 6 months

15. The simple interest on a sum of money at 8% per annum for 6 years is half the sum. The sum is:
(a) Rs. 5000
(b) Rs. 9000
(c) Rs. 8000
(d) Rs. 7000

16. At what rate percent per annum will the simple interest on a sum of money be 5 of the amount in 10 years?
(a) 4%
(b) 55%
(c) 8%
(d) 65 %

17. How long will it take a sum of money invested at 5% p.a. S.I. to increase its value by 40%?
(a) 3 years
(b) 6 years
(c) 11 years
(d) 8 years

18. Find SI if P = Rs. 1000, R = 20% per annum, T = 4yr
(a) Rs. 400
(b) Rs. 600
(c) Rs. 800
(d) Rs. 850

19. Find SI if P= Rs. 730, R = 10% per annum, T = 120 days
(a) Rs. 200
(b) Rs. 120
(c) Rs. 24
(d) Rs. 280

20. On what sum of money lent out at 9% per annum simple interest for 6 years does the simple interest amount to Rs. 810
(a) Rs. 1500
(b) Rs. 1000
(c) Rs. 1200
(d) Rs. 1800

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