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Suppose that first-, second-, and third-place winners of a contest are to be selected from eight students who entered. in how many ways can the winners be chosen?

Respuesta :

asadullahgiki
As, order is important so we use permutation,
total no. of students= n=8
selected students= r=3

nPr= n!/(n-r)! = 8!/(8-3)! =336 different ways

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