Evaluate : 5P3 and P(8, 5) – InterviewSolution

1.

Evaluate : 5P3 and P(8, 5)

Answer»

nPr=n!/(n-r)!5P3=5!(5-3)!=5!/2!=5*4=20

P(8,5)=n!/(n-r)!=8!/(8-5)!=8!/3!=8*7*6*5*4=6720

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