Question

A gentle man invites a party of (m+n) friends to a dinner & places m at one tableT1 and n at another table T2, the table being round. If not all people shall have the same neighbour in any two arrangements, then the number of ways in which h can arrange the guests, is :

Answer 1

Answer:

M+n C n * (m-1)!/2 *(n-1)!/2