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Dancing (Posted on 2003-02-16) Difficulty: 2 of 5
In a popular dancing game there are 4 directions: up, down, left, right. In the game these arrows may appear once every quarter-note or eight-note. Also two arrows may appear at the same time in the same beat. Three or four arrows cannot.

In a song that is 1 minute long and plays at 1 bar(4 quarter notes) every 4 seconds, what are the total possible number of different dances that can exist.

See The Solution Submitted by Alan    
Rating: 4.3333 (3 votes)

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Answer Comment 6 of 6 |
The required total possible number of different dances that can exist is 11^120.
  Posted by K Sengupta on 2008-11-20 00:27:25
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