SOLUTION: Two trains leave Grand Central Station and travel in opposite directions. If the faster train travels at a rate of 60 kph and the slower train travels at a rate of 45 kph, in how m

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Question 395258: Two trains leave Grand Central Station and travel in opposite directions. If the faster train travels at a rate of 60 kph and the slower train travels at a rate of 45 kph, in how many hours will they be 210 kilometers apart?
Answer by nerdybill(7384) About Me  (Show Source):
You can put this solution on YOUR website!
Two trains leave Grand Central Station and travel in opposite directions. If the faster train travels at a rate of 60 kph and the slower train travels at a rate of 45 kph, in how many hours will they be 210 kilometers apart?
.
applying the distance formula of d=rt
.
Let x = time traveled by both trains
then
x(60 + 45) = 210
x(105) = 210
x = 210/105
x = 2 hours