The C.I. on a certain sum for 2 years Rs.41 and the simple interest is Rs.40. What is the rate percent? Choose the correct choice from the following options
A) 2%
B) 5%
C) 3%
D) 4%
E) 8%
SI = 20 + 20   CI = 20 + 21   20 ---- 1   100 ---- ? =&gt; 5%   Answer: 5%
<result>B</result>
The C.I. on a certain sum for 2 years Rs.41 and the simple interest is Rs.40. What is the rate percent?