A sum of Rs. 12,500 amounts to Rs. 15,500 in 4 years at the rate of simple interest. What is the rate of interest? Choose the correct choice from the following
A) 3%	B) 4%	C) 5%	D) 6%	E) None of these
S.I. = Rs. (15500 - 12500) = Rs. 3000.   Rate =((100 x 3000)/(12500 x 4))%	= 6%   Answer :6%
<result>D</result>
A sum of Rs. 12,500 amounts to Rs. 15,500 in 4 years at the rate of simple interest. What is the rate of interest?