The difference between the simple interest received from two different sources on 1500 for 3 years is 13.50. The difference between their rates of interest is:
Choose the correct answer.
A) 0.1%	B) 0.2%	C) 0.3%	D) 0.4%	E) None of these
(1500×R1×3/100)−(1500×R2×3100)=13.50   ⇒ 4500(R1 - R2) = 1350 ⇒ R1 - R2 = 1350⁄4500 = 0.3%   Answer 0.3%
<result>C</result>
The difference between the simple interest received from two different sources on 1500 for 3 years is 13.50. The difference between their rates of interest is: