How much interest will tk. 10,000 earn in 9 months at an annual rate of 6% ?
A
900
B
750
C
600
D
450
Correct Answer: 450
9 months = 3/4 of year; 6% = 6/100 = 3/50; Tk. 10,000(principal)*3/50(interest rate)*3/4(time) = Tk. 450.