An airline passenger is planning a trip that involves three connecting flights that leave from
Airports A,B, and C, respectively. The first flight leaves Airport A every hour, beginning at
8:00 a.m., and arrives at Airport B 2（1/2) hours later. The second flight leaves Airport B every
20 minutes, beginning at 8:00 a.m., and arrives at Airport C 1(1/6) hours later. The third flight
leaves Airport C every hour, beginning at 8:45 a.m. What is the least total amount of time the
passenger must spend between flights if all flights keep to their schedules?
(A) 25 min
(B) 1 hr 5 min
(C) 1 hr 15 min
(D) 2 hr 20 min
(E) 3 hr 40 min 看不太懂题目是什么意思啊，有人知道吗？ | 
