Question: A passenger plans to take a flight to Chengdu Shuangliu today, any flight today will do. Their hotel is about 100 km from the airport, the airport security check process is expected to take 20 minutes, and the check-in counter will stop boarding 15 minutes before the flight departure. If the taxi's average speed is 80 km/h, what is the latest time the passenger should depart from the hotel? (eg: Integer + : + Integer)
Clues:
1. A flight to Chengdu Shuangliu (成都双流), CA4326, has a status of "Delayed to 17:00" (延误至17:00).
2. A flight to Chengdu Shuangliu (成都双流), AF5552, has a status of "Delayed to 16:30" (延误至16:30).
3. A flight to Chengdu Shuangliu (成都双流), scheduled at 16:20, has a status of "Delayed to 18:00" (延误至18:00).
4. A flight to Chengdu Shuangliu (成都双流), ZH437, has a status of "Delayed to 21:10" (延误至21:10).
5. A flight to Chengdu Shuangliu (成都双流), TV9902, has a status of "Delayed to 21:30" (延误至21:30).
Answer: 19:40
Category: Transportation and Travel