SOLUTION: The A train leaves the station at 3:00pm traveling at 40mph. The B train leaves the station two hours later traveling at 60mph. how long does it take for the B train to catchup to

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Question 393523: The A train leaves the station at 3:00pm traveling at 40mph. The B train leaves the station two hours later traveling at 60mph. how long does it take for the B train to catchup to the A train?
Answer by rfer(16322) About Me  (Show Source):
You can put this solution on YOUR website!
80 mi lead
20 mph overtake speed
80/20=4 hrs