SOLUTION: Two planes set off simultaneously flying towards each other,from airports 900km apart.one flies at 250km/h and the other at 350km/h. after how many hours will they pass each other?

Question 271288: Two planes set off simultaneously flying towards each other,from airports 900km apart.one flies at 250km/h and the other at 350km/h. after how many hours will they pass each other?
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
Two planes set off simultaneously flying towards each other,from airports 900km apart.one flies at 250km/h and the other at 350km/h. after how many hours will they pass each other?
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Their closing speed is 250+350 = 600 kmh
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time = distance/rate
time = 900/600 hrs = 3/2 hrs = 1 hr 30 minutes
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Cheers,
Stan H.
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