A dishonest dealer professes to sell goods at the cost price but uses a weight of 600 grams per kg, what is his percent?  Pick:
A) 75%
B) 67%
C) 29%
D) 55%
E) 45%
600 --- 400   100 --- ? =&gt; 67%   Answer: 67%
<result>B</result>
A dishonest dealer professes to sell goods at the cost price but uses a weight of 600 grams per kg, what is his percent?