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Dragon Hunting (Posted on 2004-12-10) Difficulty: 3 of 5
Prince Valiant went to fight a 3-headed, 3-tailed dragon.

He has a magic sword that can, in one stroke, chop off either one head, two heads, one tail, or two tails.

This dragon is of a type related to the hydra; if one head is chopped off, a new head grows. In place of one tail, two new tails grow; in place of two tails, one new head grows; if two heads are chopped off, nothing grows.

What is the smallest number of strokes required to chop off all the dragon's heads and tails, thus killing it?

See The Solution Submitted by SilverKnight    
Rating: 3.7778 (9 votes)

Comments: ( Back to comment list | You must be logged in to post comments.)
PETA | Comment 21 of 37 |
(In reply to Dear Nate: re(2): Biologic not math answer by Larry)

There's also an organization formed by Alaskan grizzlies, Florida alligators and sharks off the coasts of California and Hawaii:

PETA (Predators Eating Tasty Americans)

 


  Posted by Penny on 2004-12-13 09:04:38
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