A dishonest dealer professes to sell goods at the cost price but uses a weight of 720 grams per kg, what is his percent?	Choose the correct choice from the following options:	A) 15%	B) 25%	C) 38.9%	D) 45%	E) 35%
Explanation:   720 --- 280   100 --- ? =&gt; 38.9%   Answer: 38.9%
<result>C</result>
A dishonest dealer professes to sell goods at the cost price but uses a weight of 720 grams per kg, what is his percent?