SOLUTION: How many "unique" ways can 10 people fit on a 4-person park bench?
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Question 436112: How many "unique" ways can 10 people fit on a 4-person park bench?
Answer by edjones(8007) (Show Source): You can put this solution on YOUR website!
nPr=Permutation of n things taken r at a time=n!/(n-r)! Order is important.
10!/6!
=(10*9*8*7*6!)/6!
=10*9*8*7
=5040 ways
.
Ed
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