An airplane that travels 550 mph in still air encounters a 50-mph headwind. how long will it take the plane to travel 1250 mi into the wind?

As the headwind comes at the head of the plane, therefore 50 mph headwind slows the plane down.

Thus actual speed of plane with headwind,

Now using the formula ,

Hence plane will take time to complete the distance 1250 mile in 2.5 hours

the answer would be a

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