Question

11 files are there in a drawer and they are to be kept one over the other.if Raheja file has to be on top how many ways can file be arranged​

Answer 1

Given:

Number of files in the drawer = 11

Raheja's file has to be kept on the top.

To find:

Number of ways the files can be arranged.

Solution:

As the position of Raheja's file is fixed therefore we just need to arrange 10 files in the drawer.

Number of ways to arrange 10 files = 10! = 3628800

Therefore the total number of ways to arrange the files will be 3628800.