问题
单项选择题
A travel company wants to charter a plane to the Bahamas. Chartering the plane costs $8,000. So far, 18 people have signed up for the trip. If the company charges $300 per ticket, how many more passengers must sign up for the trip before the company can make any profit on the charter ？（）
A. 7
B. 9
C. 13
D. 27
E. 45
答案
参考答案：B
解析：
$8,000 divided by $300 per person means that the company must book 26.67 passengers to make a profit, so in practice this means 27 passengers. 27 required minus 18 already booked means that the company must find 9 more passengers.