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?  Select:
A) 11%
B) 11 2/9%
C) 11 1/9%
D) 10%
E) 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?