Answer Answer: 10.25% Explanation: Let the sum be Tk. 100. Then, Interest for first 6 months = Tk. 100 x 10 x 1/ 100 x 2 = Tk. 5 Interest for last 6 months = Tk. 105 x 10 x 1/ 100 x 2 = Tk. 5.25 So, Total at the end of 1 year = Tk. (100 + 5 + 5.25) = Tk. 110.25