A sum of money deposited at C.I. amounts to Rs.1980 in 3 years and to Rs.2492 in 4 years. Find the rate percent?  Choose the correct choice from the following choices
A) 30%	B) 10%	C) 25%	D) 19%	E) 50%
1980--- 512   100 --- ? =&gt; 25%   Answer: 25%
<result>C</result>
A sum of money deposited at C.I. amounts to Rs.1980 in 3 years and to Rs.2492 in 4 years. Find the rate percent?