A dishonest dealer professes to sell goods at the cost price but uses a weight of 800 grams per kg, what is his percent? Choose the correct choice from the following options
A) 20%	B) 25%	C) 30%	D) 15%	E) 10%
800 --- 200   100 --- ? =&gt; 25%   ANSWER:25%
<result>B</result>
A dishonest dealer professes to sell goods at the cost price but uses a weight of 800 grams per kg, what is his percent?