SOLUTION: A man is three eighths of the way across a train bridge when he hears a train coming from behind. If he runs as fast as he can back toward the train, he will get off the bridge jus

Question 1005745: A man is three eighths of the way across a train bridge when he hears a train coming from behind. If he runs as fast as he can back toward the train, he will get off the bridge just in time to avoid a collision. Also, if he runs as fast as possible away from the train, he will get off the bridge (on the other side) just in time to avoid a collision. The train is traveling at 60 miles per hour. How fast does the man run?
Hi! I'm sorry if I'm being a bother, but I would be grateful if you could take some of your time to answer this question. Thank you so much for helping! Ps. Sorry if there's any typos!
Answer by ankor@dixie-net.com(22740) (Show Source): You can put this solution on YOUR website!
A man is three eighths of the way across a train bridge when he hears a train coming from behind.
If he runs as fast as he can back toward the train, he will get off the bridge just in time to avoid a collision.
Also, if he runs as fast as possible away from the train, he will get off the bridge (on the other side) just in time to avoid a collision.
The train is traveling at 60 miles per hour.
How fast does the man run?
:
From the information given, we sum this up with the statement:
"The train travels the full length of the bridge while the man run's 2/8 of the length of the bridge"
:
Change 2/8 to .25
:
let s = the speed of the man
A ratio equation
=
s = .25*60
s = 15 mph is the speed of the running man

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