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~$1 \over 2$~ hours later. The second flight leaves Airport B every 20 minutes, beginning at 8:00 a.m.,and arrives at Airport C 1~$1 \over 6$~ 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?
25 min
1 hr 5 min
1hr 15 min
2 hr 20 min
3 hr 40 min
到达B机场的时间是(8:00+2.5h)10:30, 此时B机场最早起飞航班为10:40,在B机场等候10分钟。到达C机场的时间是(10:40+1h10分钟)11:50,此时C机场最早起飞航班为12:45,在C机场等候55分钟。所以在航班之间总共等候的时间是65分钟(55+10)
这个题的考点是什么?
没注意between flights...算完总时长还在想为什么没答案..