Interest Rate

26. The simple interest on a sum of money will be Tk.600 after 10 years. If the principal is trebled after 5 years will be the total interest at the end of the lenth year?

• ক. 1200
• খ. 600
• গ. 900
• ঘ. cannot be calculated

27. In how many years will a sum of money double itself at 12% per annum.

• ক. 7 years 6 months
• খ. 8 years 6 months
• গ. 6 years 9 months
• ঘ. 8 years 4 months

28. If the interest on Tk.1200 be more than the interest on Tk.1000 by Tk.50 in 3 years, the rate percent is--

• ক. 25/3%
• খ. 29/3%
• গ. 31/3%
• ঘ. 20/3%

29. A sum of money becomes (8/5) of itself in 5 years at a certain rate of interest. The rate percent per annum is---

• ক. 10%
• খ. 12%
• গ. 5%
• ঘ. 8%

30. A certain sum of money at simple interest amount to Tk.1012 in 5/2 years and Tk.1067.20 in 4 years, the rate of interest per annum is--

• ক. 4%
• খ. 5%
• গ. 2.5%
• ঘ. 3%

31. What is the princepal amount which earns Tk.132 as compound interest for the second year at 10% per annum?

• ক. 1320
• খ. 1100
• গ. 1050
• ঘ. 1200

32. The difference of compound interest on Tk.800 for 1 year at 20% per annum when compounded half-yearly and quarterly.

• ক. 4.40
• খ. 6.60
• গ. 3.75
• ঘ. 2.50

33. A sum of Tk.12000 deposited at compound interest becomes double after 5 years. After 20 years it will become--

• ক. 124000
• খ. 96000
• গ. 120000
• ঘ. 192000

34. A loan was repaid in two annual installments of Tk.121 each. If the rate of interest be 10% per annum compounded annually the sum borrowed was.

• ক. 217.80
• খ. 280
• গ. 200
• ঘ. 210

35. A tree increases annually by 1/8th of its hight. By how much will it increase after 2 years, if it stands today 64 cm high?

• ক. 75
• খ. 81
• গ. 72
• ঘ. 74

36. The value of machine depreciates every four year at the rate of 10% on its value at the begining of that year if the present value of the machine is Tk.729 its worth 3 years ago was.

• ক. 1000
• খ. 750.87
• গ. 947.10
• ঘ. 800

37. The compound interest on a sum for 2 years is Tk.832 and the simple interest on the same sum for the same period is Tk.800. The difference between the compound and simple interest for 2 years will be.

• ক. 98.56
• খ. 95.50
• গ. 48
• ঘ. 66.56

38. A sum of money becomes Tk.6690 after three years and Tk.10035 after six years on compound interest. The sum is--

• ক. 4460
• খ. 4520
• গ. 4400
• ঘ. 4445

39. Laboni bought a 1-year Tk.10,000 certificate of deposit that paid interest at an annual rate of 8 percent compounded semiannually. What was the total amount of an interest paid on this certificate at maturity?

• ক. Tk. 10,464
• খ. Tk. 864
• গ. Tk. 816
• ঘ. Tk. 800

40. A sum of money amounts to Tk. 9800 after 5 years and Tk. 12005 after 8 years at the same rate of simple interest. The rate of interest per annual is:

• ক. 5%
• খ. 8%
• গ. 12%
• ঘ. 15%

41. At what rate of compound interest rate per annual will a sum of Tk. 1200 become Tk. 1348.32 in 2 years?

• ক. 6%
• খ. 6.5%
• গ. 7%
• ঘ. 7.5%

42. A sum of Tk. 12,500 amounts to Tk. 15,500 in 4 years at the rate of simple interest. What is the rate of interest?

• ক. 3%
• খ. 4%
• গ. 5%
• ঘ. 6%