# Thread: How many different ways can you arrange 15 billiard balls in a triangular rack?

1. ## How many different ways can you arrange 15 billiard balls in a triangular rack?

i have no clue how to approach this.

2. ## Re: How many different ways can you arrange 15 billiard balls in a triangular rack?

Originally Posted by iBrute
i have no clue how to approach this.
If that is true then you would not have been given the question. Now would have been?
What topics in you text material go with this question?

3. ## Re: How many different ways can you arrange 15 billiard balls in a triangular rack?

i got it one more to go

5. ## Re: How many different ways can you arrange 15 billiard balls in a triangular rack?

It depends on the definiton of "different arrangement". Is a rotation around 120° a different arrangement? Is a mirrored setup a different arrangement? If both count as different, this is correct.

15!

7. ## Re: How many different ways can you arrange 15 billiard balls in a triangular rack?

15! = 1307674368000

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# How many ways can we rearrange 16 pool balls

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