01 May 08 04:17, Bob Ackley wrote to Cindy Haglund:

 BA> Replying to a message of Cindy Haglund to all:

 CH>> Two trains. Parallel tracks. They start 400 miles apart.
 CH>> One train takes off at 6 AM at 40 mph
 CH>> The other train takes off at 7 Am at 50 mph.
 CH>> when do they pass each other.

 a>>> who cares
 b>>> in the middle somewhere
 c>>> go away

 BA> Assuming that (a) they are going in the same direction, (b) that the
 BA> first train is ahead of the second and (c) neither train makes any
 BA> stops (none of which was stated), about 40 hours after the second
 BA> train departed.  If the second train is ahead of the first the two
 BA> will never meet.

In that scenario, the 50mph train will have passed the 40mph train before
the 6th hour chimes. At the top of the hour, the 50mph train will be ten
miles further ahead of the 40mph train and will have reached it's 400 mile
destination at the 9th hour, while the 40mph train still has an hour to
go.

                R\%/itt



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