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Flying with no wind, a plane makes a 600 km trip in 3h. On the return trip, the plane flies with a 50 km/h tailwind. What is the total trip time?

1 answer

3s = 600
s = 200 -- plane's still-air speed

600/(200+50) = 2.4

3 hours out + 2.4 hours back = 5.4 hours

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