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Old 01-06-2012, 10:39 PM   #85
Lamplighter
Person who doesn't update the user title
 
Join Date: Jun 2010
Location: Bottom lands of the Missoula floods
Posts: 6,402
Quote:
Originally Posted by infinite monkey View Post
If a clock's second hand (a floor planted clock!) is pointing opposite you, and you run around the clock in intervals of 60 seconds per minute (meaning you come back to your starting point at the same time the second hand arrives at its starting point, 180 degrees away), does the second hand ever point at you?

Which way are you running... clockwise or counter-clockwise ?
Which way is the second hand turning... clockwise or counter-clockwise ?
Doesn't matter, neither can go half-way without first going... Oh, never mind.

Train A leaves the station at 8:00 am going south at 40 mph
Train B leaves the station at 8:00 am going north at 60 mph
Stations are 360 miles apart.
Are trains A and B ever at the same place at the same time ?
Why or why not ?
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