Question 603093
A plane traveled 630 miles to Tokyo and back. The trip there was with the wind.It took 7 hours. The trip back was into the wind. The trip back took 21 hours. What is the speed of a plane in still air? what is the speed of the wind?
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To-Tokyo DATA:
distance = 630 ; time = 7 hrs ;rate would be 90 mph
Note: That data doesn't make any sense for an airplane.
It's even less sensible if it takes 21 hrs to return from
Tokyo.
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Cheers,
Stan H.