A sum of 14,400 amounts to 16,600 in 3 years at the rate of simple interest. What is the rate of interest?  Choose the correct choice from the following answers: A) 2% B) 1% C) 6% D) 5% E) 8%
D   5%   S.I. = (16600 - 14400)= 
<gadget id="calculator">(16600 - 14400)</gadget>
<output>2_200</output>
2200.   Rate= (100 x 2200)/(14400x3)% = 5%
<result>D</result>
A sum of 14,400 amounts to 16,600 in 3 years at the rate of simple interest. What is the rate of interest?