SOLUTION: In how many ways may a group of 10 people be seated in a row with exactly 10 chairs if 2 people must be seated together?
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Question 369191: In how many ways may a group of 10 people be seated in a row with exactly 10 chairs if 2 people must be seated together?
Answer by sudhanshu_kmr(1152) (Show Source): You can put this solution on YOUR website!
assume that two particular people are single entity then total 9 people
no. of ways = 9! * 2
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