A sum of Rs. 125000 amounts to Rs. 14500 in 4 years at the rate of simple interest. What is the rate of interest?	Choose the correct option.
A) 3% B) 4% C) 5% D) 6% E) 7%
S.I. = (14500 - 12500) = Rs. 2000\   Rate = (100 * 2000) / (12500 * 4)= 
<gadget id="calculator">(100 * 2000) / (12500 * 4)</gadget>
<output>4</output>
4%   ANSWER:4%
<result>B</result>
A sum of Rs. 125000 amounts to Rs. 14500 in 4 years at the rate of simple interest. What is the rate of interest?