120 is what percent of 40 ?  Choose the correct choice from the following choices.
A) 5%
B) 20%
C) 50%
D) 300%
E) 500%
40*x=120 --&gt; x=3 --&gt; 3 expressed as percent is 300%.   Answer: 300%.
<result>D</result>
120 is what percent of 40 ?