Combination problem

Question

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642

5

If there is 25 persons with 25 places possible to sit, how do I figure out how many combinations there can be?

Guest Aug 19, 2013

Guest · Answer 1 · 2013-08-19T01:17:07

[input]25![/input]

Guest · Answer 2 · 2013-08-19T03:00:05

Could you also teach me how the n! works?

Guest · Answer 3 · 2013-08-19T03:51:37

Factorial n! is: 1*2*3*...*(n-2)*(n-1)*n
e. g.: 5! = 1*2*3*4*5 = 120

Guest · Answer 4 · 2013-08-19T10:35:44

It is 25!x25!

Guest · Answer 5 · 2013-08-19T11:19:19

If we consider the amount of combinations for the places, then its (25!)²