If y exceeds x by 20%, then x is less than y by?  Select.
A) 86 2/3%  B) 16 2/7%  C) 16 2/3%  D) 16 3/3%  E) 16 2/3%
X=100	y=120   120------20   100-------? =&gt; 16 2/3%   Answer:16 2/3%
<result>C</result>
If y exceeds x by 20%, then x is less than y by?