1-twenty-men-are-invited-for-a-dinner-and-are-to-be-seated-around-a-circular-table-how-many-diffrent-arrangment-are-possible-2-with-ten-men-and-ten-women-how-many-diffrent-arrangment-are-possible-t

Question Number 180151 by ali009 last updated on 07/Nov/22

1) t w e n t y m e n a r e i n v i t e d f o r a d i n n e r a n d a r e t o

b e s e a t e d a r o u n d a c i r c u l a r t a b l e . h o w

m a n y d i f f r e n t a r r a n g m e n t a r e p o s s i b l e ?

2) w i t h t e n m e n a n d t e n w o m e n . h o w m a n y

d i f f r e n t a r r a n g m e n t a r e p o s s i b l e t h a t

a l t e r n a t e m e n a n d w o m e n ?

Answered by Acem last updated on 08/Nov/22

1) 19!

2) 9! 10! = 10 9!^{2}

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