An airline passenger is planning a trip involves three connecting flight 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 $$2\frac{1}{2}$$hours later. The second flight leaves Airport B every 20 minutes , beginning at 8:00 a.m.,and arrives at Airport C $$1\frac{1}{6}$$ hours later. The third flight leaves Airpoort 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?
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A25 min
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B1 hr 5 min
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C1 hr 15 min
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D2 hr 20 min
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E3 hr 40 min