A: Simple interest = 5000(11/10) = Rs.72. Compound interest = 5000(11/10) * 2 = Rs.77. The rate of interest is (11/10)  77 = 12%. The answer is (B).
Answer the following multiple choice question with options (a), (b), (c), (d), (e) by reasoning step-by-step.
Q: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? Answer Choices: A)11 B)12 C)77 D)85 E)65