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The glass balls (Posted on 2004-01-30) Difficulty: 2 of 5
Through a marksmanship contest, there are 4 strings of 4 glass balls hanging down from a horizontal post. Each bullet can only hit one glass ball at a time, so 16 shots need to be fired.

The only problem is if you shoot a glass ball that has a glass ball hanging below it (on the same string), it will fall off. So given the rule that you can't shoot a glass ball with a glass ball underneath it (and on the same string), how many ways can you shoot all the glass balls?

See The Solution Submitted by Gamer    
Rating: 4.0000 (3 votes)

Comments: ( Back to comment list | You must be logged in to post comments.)
re: Masterful Obfuscation | Comment 4 of 5 |
(In reply to Masterful Obfuscation by Richard)

I agree.
It is the 1st time a problem gets a "5" rating from me.

ady
  Posted by Ady TZIDON on 2004-01-31 03:39:21

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