Simple Interest - One Line Questions

1. A sum of money triples itself in 16 years at simple interest. The rate of interest per annum is: — 12.5%
2. A sum of money becomes triple itself in 8 years at simple interest. The rate of interest per annum is: — 12.5%
3. If Rs. 4000 becomes Rs. 5000 in 2 years, what is the simple interest rate? — 12.5%
4. A sum of money triples itself in 12 years at simple interest. The rate of interest per annum is: — 16.67%
5. A sum of money becomes 3 times itself in 10 years at simple interest. In how many years will it become 6 times itself? — 20 years
6. A sum of money doubles in 5 years at simple interest. In how many years will it become 5 times itself? — 20 years
7. A sum of money becomes 7/4 times itself in 3 years at simple interest. The rate of interest per annum is: — 25%
8. A sum of money becomes 5/3 times itself in 2 years at simple interest. The rate of interest per annum is: — 16.67%
9. A certain sum of money amounts to Rs. 1,350 in 5 years and Rs. 1,425 in 6 years at simple interest. The rate of interest per annum is: —
10. If a sum of money doubles in 15 years at simple interest, in how many years will it triple? — 30 years
11. A sum of money becomes 4 times itself in 12 years at simple interest. In how many years will it become 7 times itself? — 24 years
12. In how many years will a sum of money become 4 times itself at a simple interest rate of 10% per annum? — 30 years
13. In what time will Rs. 1000 become Rs. 1300 at 5% simple interest per annum? — 6 years
14. A sum of money becomes double in 10 years at simple interest. What is the rate of interest? — 10%
15. If the simple interest on Rs. 1000 for 2 years is Rs. 200, what is the rate of interest per annum? — 10%
16. A sum of money doubles itself in 10 years at a certain rate of simple interest. What is the rate of interest per annum? — 10%
17. A sum of money invested at simple interest amounts to Rs. 2,100 in 3 years and Rs. 2,400 in 4 years. The rate of interest per annum is: — 5%
18. A sum of money becomes Rs. 9,800 after 2 years and Rs. 12,005 after 5 years at the same rate of simple interest. The rate of interest per annum is: — 7%
19. If the simple interest on a sum of money is 1/4 of the principal and the number of years is equal to the rate of interest per annum, find the rate of interest. — 5%
20. A sum of money lent out at simple interest amounts to Rs. 750 in 2 years and Rs. 1050 in 5 years. The rate of interest per annum is: — 10%
21. If the simple interest on a sum for 2 years is Rs. 600 and the compound interest on the same sum for 2 years is Rs. 650, find the rate of interest. — 5%
22. A man borrows Rs. 2,500 from a finance company at a simple interest rate of 36% per annum. If he pays back Rs. 3,100 after some time, how long was the money borrowed? — 8 months
23. If the principal is P, rate of interest is R% per annum, and time is T years, what is the amount? — P + (P * R * T) / 100
24. What is the difference between the simple interest on Rs. 10,000 for 3 years at 6% per annum and the simple interest on Rs. 8,000 for 5 years at 5% per annum? — Rs. 1,000
25. The simple interest on a sum of money at 8% per annum for 2 years is Rs. 200 less than the simple interest on the same sum for 3 years at 10% per annum. Find the sum. — Rs. 2,000
26. The simple interest on a sum of money for 3 years is Rs. 225. If the rate of interest is 5% per annum, what is the principal amount? — Rs. 1,500
27. What is the simple interest on Rs. 20,000 at 6% per annum for 18 months? — Rs. 2,160
28. What is the difference between the simple interest on Rs. 500 for 4 years at 5% per annum and the simple interest on Rs. 600 for 2 years at 4% per annum? — Rs. 20
29. The simple interest on a sum of money for 2 years is Rs. 800, and the compound interest on the same sum for 2 years is Rs. 820. What is the principal? — Rs. 20,000
30. What is the amount after 5 years if a principal of Rs. 8,000 is invested at a simple interest rate of 7% per annum? — Rs. 13,600
31. A sum of money lent out at simple interest amounts to Rs. 1100 in 2 years and Rs. 1250 in 5 years. The sum is: — Rs. 1050
32. What is the amount after 3 years if a principal of Rs. 10,000 is invested at a simple interest rate of 6% per annum? — Rs. 13,800
33. What is the amount after 2 years if a principal of Rs. 15,000 is invested at a simple interest rate of 4% per annum? — Rs. 16,800
34. The simple interest on a sum of money is Rs. 450 for 3 years at 5% per annum. What is the principal? — Rs. 3,000
35. If the simple interest on a sum of money for 3 years is Rs. 450, and the rate of interest is 5% per annum, what is the principal amount? — Rs. 3,000
36. If the simple interest on a sum of money for 5 years is Rs. 750, what is the principal amount if the rate of interest is 5% per annum? — Rs. 3,000
37. If the simple interest on a sum for 2 years is Rs. 1,000 and the compound interest on the same sum for 2 years is Rs. 1,050, what is the principal amount? — Rs. 25,000
38. The simple interest on a certain sum of money for 3 years at 8% per annum is Rs. 360 less than the interest on the same sum for 4 years at 9% per annum. Find the sum. — Rs. 6,000
39. If the rate of simple interest is 12% per annum, then to get an interest of Rs. 600 per month, the principal must be: — Rs. 50,000
40. The simple interest on a sum of money at 5% per annum for 4 years is Rs. 1000. What is the principal amount? — Rs. 5000
41. A sum of money amounts to Rs. 8,000 in 3 years and Rs. 9,000 in 4 years at simple interest. The principal amount is: — Rs. 7,000
42. The simple interest on a sum of money for 2 years is Rs. 300. If the compound interest on the same sum for 2 years is Rs. 315, find the principal. — Rs. 15,000
43. The simple interest on a sum of money is Rs. 1,200 for 4 years at the rate of 6% per annum. What is the principal amount? — Rs. 10,000
44. A sum of money lent out at simple interest amounts to Rs. 650 in 3 years and Rs. 720 in 4 years. The sum is: — Rs. 500
45. What is the amount after 4 years if a principal of Rs. 5,000 is invested at a simple interest rate of 7.5% per annum? — Rs. 7,000
46. A sum of money lent out at simple interest amounts to Rs. 720 in 2 years and to Rs. 1020 in a total of 6 years. The sum is: — Rs. 600
47. What is the simple interest on Rs. 12,000 at 8% per annum for 9 months? — Rs. 960
48. What is the simple interest on Rs. 3,000 at 5% per annum for 6 months? — Rs. 75
49. If a principal amount of Rs. 5,000 is invested at a rate of 5% per annum for 3 years, what is the simple interest earned? — Rs. 750
50. What is the formula for calculating Simple Interest? — SI = (P * R * T) / 100
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