Solve this.
Here,
nPr = x.(n-1)P(r-1)
Therefore, n!/( n-r)! = x. (n-1)!/(n-1-r+1)!
n(n-1)!/(n-r)! = x. (n-1)!/(n-r)!
Therefore, x = n
Hope It Helps! :)
nPr = x.(n-1)P(r-1)
Therefore, n!/( n-r)! = x. (n-1)!/(n-1-r+1)!
n(n-1)!/(n-r)! = x. (n-1)!/(n-r)!
Therefore, x = n
Hope It Helps! :)