What is the difference between the C.I. on Rs. 9000 for 1 1/2 years at 4% per annum compounded yearly and half-yearly?
Choose the correct option.
A) s.2.04
B) s.2.08
C) s.3.67
D) s.2.83
E) s.2.42
C.I. when interest is compounded yearly   = [9000 * (1 + 4/100) * (1 + (1/2 * 4)/100]   = 9000 * 26/25 * 51/50 = Rs. 9547.2   C.I. when interest is compounded half-yearly   = [9000 * (1 + 2/100)2]   = (9000 * 51/50 * 51/50 * 51/50)   = Rs. 9550.87 Difference   = (9550.87 - 9547.2)   = Rs.3.67.   Answer: s.3.67
<result>C</result>
What is the difference between the C.I. on Rs. 9000 for 1 1/2 years at 4% per annum compounded yearly and half-yearly?