the government was giving out 10500 after 6 years of living in the United States and 15500 after 12 years of living in the United Sates. how much is the interest per year. Choose the correct answer.
A) 12%  B) 20%  C) 15%  D) 10%  E) 5%
for 6 years = (15500 - 10500)= 
<gadget id="calculator">(15500 - 10500)</gadget>
<output>5_000</output>
5000.   for 12 years= (5000x6)/6= 5000   Principal = (10500 - 5000)= 
<gadget id="calculator">(10500 - 5000)</gadget>
<output>5_500</output>
5500.   Hence, rate= (100 x 5000)/(5500x6)	% = 15% ANSWER :15%
<result>C</result>
the government was giving out 10500 after 6 years of living in the United States and 15500 after 12 years of living in the United Sates. how much is the interest per year.