Ram professes to sell his goods at the cost price but he made use of 800 grms instead of a kg, what is the gain percent?
Choose the correct choice from the following choices
A) 11 1/7%  B) 11 7/7%  C) 11 1/9%  D) 71 1/9%  E) 25%
800 --- 200   100 --- ? =&gt; 25%   Answer:25%
<result>E</result>
Ram professes to sell his goods at the cost price but he made use of 800 grms instead of a kg, what is the gain percent?