a television have side 6*5.its screen size is 5*4.calculate the percentage of unscreened part t.v. Choose the correct option:
A) 30 B) 25 C) 33.33 D) 44.44 E) 28
unscreened part=30-20= 
<gadget id="calculator">30-20</gadget>
<output>10</output>
10.   %unscreened part=10/30*100=33.33%   answer 33.33
<result>C</result>
a television have side 6*5.its screen size is 5*4.calculate the percentage of unscreened part t.v.