Question 50898
The distance from New York to Boston is 220 miles.  Suppose a train leaves Boston for New York and travels at 65mph.  One hour later, a train leaves New York for Boston and travels at 55mph.  If we assume the tracks are the same and the trains maintain a constant speed, how far apart are the trains 1 hour before they meet.
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One hour before they meet they are 65+55 miles apart or 120 miles apart.
Cheers,
Stan H.