A sum of Rs. 125000 amounts to Rs. 15000 in 4 years at the rate of simple interest. What is the rate of interest?	Pick
A) 3%	B) 4%	C) 5%	D) 6%	E) 7%
S.I. = (15000 - 12500) = Rs. 2500\   Rate = (100 * 2500) / (12500 * 4)= 
<gadget id="calculator">(100 * 2500) / (12500 * 4)</gadget>
<output>5</output>
5%   ANSWER:5%
<result>C</result>
A sum of Rs. 125000 amounts to Rs. 15000 in 4 years at the rate of simple interest. What is the rate of interest?