Thursday
October 30, 2014

Homework Help: Math - What is the length of the train??????

Posted by Anonymous on Tuesday, November 27, 2007 at 7:03pm.

I have NO IDEA on how to tackle the following problem. This question has stumped me for like...2 hours now...and I don't know what to do...
If someone could please show me a step by step on solving it, please post!


Problem:
--------
Two people stand back to back next to the rails in a small railway station. As the head of the express train (which does not stop at this station) reaches them, they start to walk in opposite directions parallel to the rails. As the tail of the train reaches each of them, they stop, having walked 30m and 40m respectively. If they both walked with identical, constant speeds and the train's speed was constant, how long was the train?


Answer:
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240m

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