Ram professes to sell his goods at the cost price but he made use of 900 grms instead of a kg, what is the gain percent?
Choose the correct choice from the following answers.
A) 11 1/8%	B) 11 1/5%	C) 11 1/9%	D) 11 12%	E) 11 5/9%
900 --- 100   100 --- ? =&gt; 11 1/9%   Answer: 11 1/9%
<result>C</result>
Ram professes to sell his goods at the cost price but he made use of 900 grms instead of a kg, what is the gain percent?