问题
单项选择题
A certain tire company can produce tires at a cost of $22,500 per batch plus $9 per tire. The company can sell tires to the wholesaler at a cost of $20 per tire. If a batch of 15,000 tires is produced and sold, what is the company’s profit per tire ？（）
A. $9.00
B. $9.50
C. $11.00
D. $13.50
E. $20.00
答案
参考答案：B
解析：
Total income from the sale will be $20×15,000=$300,000. Total production costs will be $22,500+$9×15,000=$157,500. Total profit, or income minus costs, is $300,000-$157,500=$142,500. $142,500/15,000=$9.50 per tire.