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Stay in Form (Posted on 2004-01-03) Difficulty: 4 of 5
A body of soldiers form a 50m-by-50m square ABCD on the parade ground.

In a unit of time, they march forward 50m in formation to take up the position DCEF.

The army's mascot, a small dog, is standing next to its handler at location A. When the soldiers start marching, the dog begins to run around the moving body in a clockwise direction, keeping as close to it as possible. When one unit of time has elapsed, the dog has made one complete circuit and has got back to its handler, who is now at location D (assume the dog runs at a constant speed and does not delay when turning the corners).
 B----C----E
 |    |    |   
 A----D----F
How far does the dog travel?

See The Solution Submitted by DJ    
Rating: 4.2500 (8 votes)

Comments: ( Back to comment list | You must be logged in to post comments.)
answer Comment 9 of 9 |
The dog travels a distance of 209.06 meters approximately . 
  Posted by K Sengupta on 2008-02-07 05:15:52
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