Respuesta :

There are 28 students in a homeroom. How many différent ways can they be chosen to be elected President, Vice President, Treasurer, and Secretary?

In this problem, we have a permutation

so

Find out 28P4

[tex]28P4=\frac{28!}{(28-4)!}[/tex]

28P4=491,400

therefore

the answer is 491,400

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