What is the total interest on Tk. 800 at 12.5% per annum for 9 months in Taka?
A
75
B
110
C
88
D
22
Correct Answer: 75
9 months = 9/12 year = 3/4 year Interest, I = pnr = 800 x 3/4 x 12.5/100 = 75 taka