SOLUTION: An army, lined up single file, is one mile long. It starts marching at a uniform rate. It marches exactly one mile and then stops. At exactly the time it started marching, a messe

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Question 252390: An army, lined up single file, is one mile long. It starts marching at a uniform rate. It marches exactly one mile and then stops. At exactly the time it started marching, a messenger at the back of the line begins jogging toward the front of the line at a uniform rate. When he reaches the front of the line he instantaneously drops off a message and turns around and heads back to the end of the line just as the army stops marching. What distance did the messenger travel?
Answer by edjones(8007) About Me  (Show Source):
You can put this solution on YOUR website!
3 mi by the time he gets back to the end of the line.