Permutations

Because the order of selection is important here. That's why we use permutation.

Jitendra Kumar

CA Final

★ 41K+

28-May-22 00:07

This is based on the selection then select 3 persons out of 10.

Jitendra Kumar

CA Final

★ 41K+

27-May-22 22:33

They have used permutation bro

Thread Starter

Reetikaa R

CA Final

★ 7K+

27-May-22 23:48

There are twelve choices for president, eleven choices for vice-president, and ten choices for treasurer for a total of 12â??11â??10=1320 ways to fill the office without using either member of the pair who will not serve together.

Jitendra Kumar

CA Final

★ 41K+

28-May-22 00:13

Sorry it is wrong.

Jitendra Kumar

CA Final

★ 41K+

28-May-22 07:55

There are 10 choices for president, 9 choices for vice-president, and 8 choices for treasurer for a total of 10*7*8= 720 ways to fill the office without using either member of the pair who will not serve together.

Jitendra Kumar

CA Final

★ 41K+

28-May-22 07:56

Kind of permutaion only right?

shalu Muthukumar

CA Final

★ 1K+

28-May-22 09:25

How u know oder of selection is important

Thread Starter

Reetikaa R

CA Final

★ 7K+

29-May-22 16:46

Because the role of each member which would be selected is different.

Jitendra Kumar

CA Final

★ 41K+

29-May-22 17:15

I send you some scenarios so you can understand better the difference between permutation and combination.

Jitendra Kumar

CA Final

★ 41K+

29-May-22 17:27

Here:

Jitendra Kumar

CA Final

★ 41K+

29-May-22 17:30

Good!

Sahibdeep Singh

CA Inter

★ 14K+

29-May-22 17:59