If y exceeds x by 20%, then x is less than y by?  Choose the most appropriate option
A) 16 2/7%	B) 16 2/8%	C) 16 2/3%	D) 16 2/9%	E) 16 2/13%
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?