SOLUTION: Trains A and B start from the same station and run in opposite directions at an average rate of 80 kilometers per hour and 92 kilometers per hour, respectively. In how many hours w

Question 923938: Trains A and B start from the same station and run in opposite directions at an average rate of 80 kilometers per hour and 92 kilometers per hour, respectively. In how many hours will they be 473 km. apart?
Answer by TimothyLamb(4379) (Show Source): You can put this solution on YOUR website!
combined speed = 80 + 92 = 172 kph
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s = d/t
t = d/s
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t = 473/172
t = 2.75
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answer:
t = 2:45 hours
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