P(16,3) permutation?

Question

asked Feb 16, 2024 178k views

1 Answer

XAMeLi · Answer 1 · 2024-02-22T18:22:46+0000

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Work Shown:

P(n,r) = (n!)/( (n-r)! )

P(16,3) = (16!)/( (16-3)! )

P(16,3) = (16!)/( 13! )

P(16,3) = (16*15*14*13!)/( 13! )

P(16,3) = 16*15*14

P(16,3) = 3360

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Shortcut:

The P(16,3) means we start with 16. Then count down by one until we have 3 items to multiply out.

So we get P(16,3) = 16*15*14 = 3360