At a simple interest rate of 10% per year , how many years will it take for a principle amount of Tk. 500 to earn an interest amount of Tk. 100. ?
A
3
B
2
C
2 1/2
D
can not be determined
Correct Answer: 2
we know that, I = Pnr বা, 100 = 500 * n * 10/100 so, n = 2