SOLUTION: a train is going 150 mph. Another train leaving one hour later is traveling 100 mph. how long will it be before the 2 trains are 2000 miles apart.
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Question 363236: a train is going 150 mph. Another train leaving one hour later is traveling 100 mph. how long will it be before the 2 trains are 2000 miles apart. Answer by solver91311(24713) (Show Source):
During the first hour, the difference in the two trains' speeds is 150 mph, because the fast train is going 150 and the other train hasn't left yet and is therefore going 0 mph. In one hour, at 150 mph difference, the two trains will be 150 miles apart.
Once the second train leaves, the difference in the speeds will be 150 minus 100 equals 50 mph. The distance between the two trains must increase 1850 miles from this point so that the two trains will be 2000 miles apart. 2000 minus 150 equals 1850.
How long will it take to travel 1850 miles at 50 miles per hour?
John
My calculator said it, I believe it, that settles it
