Question

The number of ways in which 4 women and 10 men are to be seated in a row so that exactly 3 men sit between every 2 nearest women is P. Then the value of P/10! is equal to

Answer 1

If m > n, then , the number of ways in which they can be seated is m!(m + 1)! ... total no. of ways of seating men and women =m!(m+1Pn ).