SOLUTION: Two private airplanes travel toward each other from cities that are 780 km apart at speeds of 190 km/h and 200 km/h. They left at the same time. In how many hours will they meet?

Question 884355: Two private airplanes travel toward each other from cities that are 780 km apart at speeds of 190 km/h and 200 km/h. They left at the same time. In how many hours will they meet?
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
Two private airplanes travel toward each other from cities that are 780 km apart at speeds of 190 km/h and 200 km/h. They left at the same time. In how many hours will they meet?
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Their closing speed is 190+200 = 390 km/hr
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Time to meet is d/r = 780390 = 2 hrs
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Cheers,
Stan H.
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