What will be the number of permutations of n objects taken all at a time, where p1 objects are of first kind, p2 objects are of second kind, ..... pk objects are of kth kind and rest, if any are all different?
1
n! / p1n1! P2! n2.... pk nk!
2
nk
3
nr
4
n! /p1! p2!..... pk!