Asked by kitkat
Find the number of seating arrangements of eight basketball players on a bench if either the one centre or both of the two forwards must sit at the end where the coach always sits.
Answers
Answered by
Reiny
case1 : place the centre at the end
number of ways = 1 x 7! = 5040
case2: the two forwards are at the ends
number of ways = 2 x 6! = 1440
total number of ways = 5040+1440 = 6480
number of ways = 1 x 7! = 5040
case2: the two forwards are at the ends
number of ways = 2 x 6! = 1440
total number of ways = 5040+1440 = 6480
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