The difference between simple interest and C.I. at the same rate for Rs.5000 for 2 years in Rs.72. The rate of interest is? Choose the correct choice from the following answers:  A) 11  B) 12  C) 77  D) 85  E) 65
5000 = 72(100/R)2   5 R2 = 720 =&gt; R = 12.Answer:12
<result>B</result>
The difference between simple interest and C.I. at the same rate for Rs.5000 for 2 years in Rs.72. The rate of interest is?