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If you are flying to a city 800 miles away, what will be the difference in flight times between flying into a 40-mph headwind and flying with a 40-mph tailwind if the plane's maximum speed with no wind is 160 mph?

  • math -

    assuming you actually do fly at maximum speed, and recalling that time = distance/speed,

    800/(160-40) - 800/(160+40)
    = 800/120 - 800/200
    = 2.666 hours, or 2 hr 40 min

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