A sum of 14,800 amounts to 19,800 in 3 years at the rate of simple interest. What is the rate of interest? Choose the correct choice from the following.
A) 12%
B) 11%
C) 16%
D) 15%
E) 18%
B   11%   S.I. = (19800 - 14800)= 
<gadget id="calculator">(19800 - 14800)</gadget>
<output>5_000</output>
5000.   Rate= (100 x 5000)/(14800x3)% = 11%
<result>B</result>
A sum of 14,800 amounts to 19,800 in 3 years at the rate of simple interest. What is the rate of interest?