140 is what percent of 40?  Choose the correct choice from the following choices:
A) 5%
B) 20%
C) 50%
D) 350%
E) 500%
40*x=140 --&gt; x=3.5 --&gt; 3.5 expressed as percent is 350%.   Answer: 350%.
<result>D</result>
140 is what percent of 40?