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August 28, 2014

August 28, 2014

Posted by **Jen** on Friday, July 29, 2011 at 6:32pm.

I think the first question is 8 different ways because they will be ranked on a list of 8.

I think the second question is 8*8*8=512 ways the awards can be given out.....but im not sure if i did this right, please help!

- Math -
**Damon**, Friday, July 29, 2011 at 6:44pmsay we have 8 bands numbered 1 through 8

chance that band 1 is top = 1/8

then chance that band 2 is second = 1/7

then chance that band 3 is third = 1/6

etc

so I claim

8! ways (big number, you compute :)

Now how many permutations of 8 taken 3 at a time (permutations not combinations because the order of prizes counts within each group of three) ?

n!/(n-r)! = 8!/(8-3)! = 8!/5! = 8*7*6

= 336

- Math -
**Jen**, Friday, July 29, 2011 at 6:49pmoh okay i get it...

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