A probability problem by Panshul Rastogi
Probability
Level
2
Find the number of ways in which 10 people can sit in a circle.
11!
10! -10
10!
9!
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1 solution
We know that there is 10! different ways in which 10 persons can sit in a row. But in a circle , each arrangement with repeat 10 times. hence we need to divide by 10 .10!/10= 9 !