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#1 Re: Help Me ! » Counting number of combinations » 2010-01-15 00:27:36

Thank you, your a genius! I will get back to you in regards to the bigger challenge once I have absorbed your answer.

Regards.

#2 Help Me ! » Counting number of combinations » 2010-01-14 13:21:55

Tomm
Replies: 4

I would like help for the following problem.
4 staff that can all do different tasks, Some can perform more than one task, but not at the same time
I would like to find a formula that tells me how many different ways the staff can be organized (rostered) to complete the four different tasks

TASK1      TASK2   TASK3       
*****      Alice       Alice
Betty       Betty      Betty
Carol       Carol      *****
Dianne     *****    *****

I know the answer is 7.
The 7 combinations are
Betty, Carol and Alice
Carol, Alice and Betty
Carol Betty and Alice
Denise Alice and Betty
Denise Bett and Alice
Denise Carol and Alice
Denice Carol and Betty

I want to get and Excel spread sheet to calculate the answer 7.

My Bigger problem contains 20 names and 12 Tasks so i have to careful not to over complicate the solution.

Thank you

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