The difference between the simple interest received from two different sources on Rs. 500 for 3 years is Rs. 13.50. The difference between their rates of interest is?  Select the correct option:
A) A)2.4% B) B)6.6% C) C)0.3% D) D)2.0% E) E)1.3%
(500 * R1 * 3)/100 - (500 * R2 * 3)/100 = 13.50 1500(R1 - R2) = 1350   R1 - R2 = 6.6%   Answer:6.6%
<result>B</result>
The difference between the simple interest received from two different sources on Rs. 500 for 3 years is Rs. 13.50. The difference between their rates of interest is?