We made a down payment of $25 and borrowed the balance on a new sofa which cost $250. The balance with interest was paid in 23 monthly payments of $11 each and a final payment of $17. The amount of interest paid was what percent of the amount borrowed? Choose the correct option:
A) 20%  B) 22%  C) 25%  D) 27%  E) 30%
We borrowed $225.   To pay back this loan, we paid 23*$11 + $17=$270.   The interest was $270-$22523* 11 +  17= 
<gadget id="calculator">23* 11 +  17</gadget>
<output>270</output>
$270.   The interest was $270-$225=$45.   The percentage was $45/$225270- 225= 
<gadget id="calculator">270- 225</gadget>
<output>45</output>
$45.   The percentage was $45/$225=0.2  45/ 225= 
<gadget id="calculator">  45/ 225</gadget>
<output>1/5 = around 0.2</output>
0.2=20%.   The answer is 20%.
<result>A</result>
We made a down payment of $25 and borrowed the balance on a new sofa which cost $250. The balance with interest was paid in 23 monthly payments of $11 each and a final payment of $17. The amount of interest paid was what percent of the amount borrowed?