Jon's MENSA Question of the Day
--posted by JRJ on 9/27/2005
We have a slow set of trains here. One train runs from A to B at 19 miles per hour. The other runs from B to A at 21 miles per hour (it's a slightly improved model). One hour before the trains pass each other, how far apart are they?
Labels: MENSA
1 Comments:
40 miles apart. one hour prior, the first train was 19 miles "west" of their meeting place, and the second train was 21 miles "east" of it. 19 + 21 = 40 miles apart.
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