A dishonest dealer professes to sell goods at the cost price but uses a weight of 500 grams per kg, what is his percent? Choose the most appropriate option.
A) 20%
B) 25%
C) 29%
D) 55%
E) 100%
500 --- 500   100 --- ? =&gt;100%   Answer: 100%
<result>E</result>
A dishonest dealer professes to sell goods at the cost price but uses a weight of 500 grams per kg, what is his percent?