Question

How many ways can an irs auditor select 6 of 13 tax returns for an audit?

Answer 1

There are 1716 ways for an IRS auditor to select 6 of 13 tax returns for an audit.

Step-by-step explanation:

The question asks how many ways an IRS auditor can select 6 of 13 tax returns for an audit. This is a combination problem since the order does not matter. To solve this, we can use the combination formula:

C(n, r) = n! / (r! * (n-r)!)

where n is the total number of items and r is the number of items to be selected. Plugging in the values, we get:

C(13, 6) = 13! / (6! * (13-6)!) = 13! / (6! * 7!) = 1716

Therefore, there are 1716 ways for an IRS auditor to select 6 of 13 tax returns for an audit.

Answer 2

12C4 = 12!/[(12-4)!*4!] = 12*11*10*9/1*2*3*4 = 495 ways