RRB NTPC - Simple Interest Online Test (MCQ Quiz)

1. What is the formula for calculating Simple Interest?

A) SI = (P * R * T) / 100 B) SI = P * (1 + R/100)^T C) SI = P + (P * R * T) / 100 D) SI = (P * T) / (R * 100)

2. 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?

A) Rs. 750 B) Rs. 1,500 C) Rs. 7,500 D) Rs. 15,000

3. 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?

A) Rs. 5,000 B) Rs. 10,000 C) Rs. 7,200 D) Rs. 30,000

4. A sum of money doubles itself in 10 years at a certain rate of simple interest. What is the rate of interest per annum?

A) 5% B) 10% C) 15% D) 20%

5. In how many years will a sum of money become 4 times itself at a simple interest rate of 10% per annum?

A) 20 years B) 25 years C) 30 years D) 40 years

6. 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?

A) Rs. 10,800 B) Rs. 11,800 C) Rs. 13,600 D) Rs. 28,000

7. 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?

A) Rs. 20,000 B) Rs. 25,000 C) Rs. 30,000 D) Rs. 50,000

8. 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:

A) Rs. 600 B) Rs. 650 C) Rs. 700 D) Rs. 800

9. 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.

A) Rs. 3,000 B) Rs. 4,000 C) Rs. 5,000 D) Rs. 6,000

10. If the rate of simple interest is 12% per annum, then to get an interest of Rs. 600 per month, the principal must be:

A) Rs. 40,000 B) Rs. 50,000 C) Rs. 60,000 D) Rs. 70,000

11. 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:

A) 5% B) 6% C) 7% D) 8%

12. 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?

A) Rs. 10 B) Rs. 20 C) Rs. 30 D) Rs. 40

13. 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:

A) 5% B) 6% C) 7% D) 8%

14. 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.

A) 5% B) 10% C) 15% D) 20%

15. 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?

A) 6 months B) 8 months C) 10 months D) 12 months

16. In what time will Rs. 1000 become Rs. 1300 at 5% simple interest per annum?

A) 5 years B) 6 years C) 7 years D) 8 years

17. 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.

A) Rs. 1,000 B) Rs. 1,500 C) Rs. 2,000 D) Rs. 2,500

18. 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:

A) 5% B) 10% C) 15% D) 20%

19. If the principal is P, rate of interest is R% per annum, and time is T years, what is the amount?

A) P + (P * R * T) / 100 B) P * (1 + R/100)^T C) (P * R * T) / 100 D) P * (1 - R/100)^T

20. A sum of money becomes triple itself in 8 years at simple interest. The rate of interest per annum is:

A) 10% B) 12.5% C) 15% D) 20%

21. What is the simple interest on Rs. 3,000 at 5% per annum for 6 months?

A) Rs. 75 B) Rs. 150 C) Rs. 300 D) Rs. 600

22. 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:

A) 2.5% B) 5% C) 7.5% D) 10%

23. If Rs. 4000 becomes Rs. 5000 in 2 years, what is the simple interest rate?

A) 10% B) 12.5% C) 15% D) 20%

24. A sum of money doubles in 5 years at simple interest. In how many years will it become 5 times itself?

A) 15 years B) 20 years C) 25 years D) 30 years

25. 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?

A) Rs. 1,000 B) Rs. 1,500 C) Rs. 2,000 D) Rs. 2,500

26. 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?

A) Rs. 11,800 B) Rs. 12,800 C) Rs. 13,800 D) Rs. 18,000

27. A sum of money triples itself in 12 years at simple interest. The rate of interest per annum is:

A) 10% B) 12.5% C) 16.67% D) 20%

28. 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?

A) Rs. 2,000 B) Rs. 2,500 C) Rs. 3,000 D) Rs. 3,500

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?

A) Rs. 10,000 B) Rs. 20,000 C) Rs. 25,000 D) Rs. 30,000

30. A sum of money becomes 7/4 times itself in 3 years at simple interest. The rate of interest per annum is:

A) 15% B) 20% C) 25% D) 30%

31. What is the simple interest on Rs. 12,000 at 8% per annum for 9 months?

A) Rs. 720 B) Rs. 960 C) Rs. 1,080 D) Rs. 1,440

32. 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:

A) Rs. 500 B) Rs. 550 C) Rs. 600 D) Rs. 700

33. 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.

A) 5% B) 6% C) 7% D) 8%

34. A sum of money becomes 3 times itself in 10 years at simple interest. In how many years will it become 6 times itself?

A) 15 years B) 20 years C) 25 years D) 30 years

35. The simple interest on a sum of money at 5% per annum for 4 years is Rs. 1000. What is the principal amount?

A) Rs. 4000 B) Rs. 5000 C) Rs. 6000 D) Rs. 7000

36. 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?

A) Rs. 16,200 B) Rs. 16,800 C) Rs. 17,200 D) Rs. 18,000

37. A sum of money becomes double in 10 years at simple interest. What is the rate of interest?

A) 5% B) 10% C) 15% D) 20%

38. The simple interest on a sum of money is Rs. 450 for 3 years at 5% per annum. What is the principal?

A) Rs. 2,000 B) Rs. 2,500 C) Rs. 3,000 D) Rs. 3,500

39. If a sum of money doubles in 15 years at simple interest, in how many years will it triple?

A) 20 years B) 25 years C) 30 years D) 35 years

40. 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:

A) Rs. 5,000 B) Rs. 5,500 C) Rs. 6,000 D) Rs. 7,000

41. What is the simple interest on Rs. 20,000 at 6% per annum for 18 months?

A) Rs. 1,800 B) Rs. 2,160 C) Rs. 2,400 D) Rs. 3,600

42. If the simple interest on Rs. 1000 for 2 years is Rs. 200, what is the rate of interest per annum?

A) 5% B) 10% C) 15% D) 20%

43. A sum of money becomes 4 times itself in 12 years at simple interest. In how many years will it become 7 times itself?

A) 20 years B) 24 years C) 28 years D) 30 years

44. 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.

A) Rs. 5,000 B) Rs. 7,500 C) Rs. 10,000 D) Rs. 15,000

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?

A) Rs. 6,000 B) Rs. 6,500 C) Rs. 7,000 D) Rs. 7,500

46. A sum of money triples itself in 16 years at simple interest. The rate of interest per annum is:

A) 10% B) 12.5% C) 15% D) 20%

47. 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?

A) Rs. 2,000 B) Rs. 2,500 C) Rs. 3,000 D) Rs. 3,500

48. A sum of money becomes 5/3 times itself in 2 years at simple interest. The rate of interest per annum is:

A) 16.67% B) 20% C) 25% D) 33.33%

49. 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?

A) Rs. 1,000 B) Rs. 1,200 C) Rs. 1,500 D) Rs. 1,800

50. 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:

A) Rs. 1000 B) Rs. 1050 C) Rs. 1100 D) Rs. 1200

Simple Interest - Online Test

Test Results