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Subj:.....Archery Puzzle (S588)
          From the book 
           "More Mathematical Puzzles of Sam Loyd" 
            Edited by Martin Gardner 
            From: Dover Publications in 1960
 

Sam Loyd gives us an archery target in which you can score 
16, 17, 23, 24, 39, and 40 points.  How many arrows does it 
take to score exactly 100 points on this target?

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