SOLUTION: You have been asked to go to Dr. Roy's class and get 4 people to help move some desks in a different classroom. If there are 12 people in the class how many different ways can you

Question 1118814: You have been asked to go to Dr. Roy's class and get 4 people to help move some desks in a different classroom. If there are 12 people in the class how many different ways can you select 4 people?
Answer by ikleyn(52797)   (Show Source): You can put this solution on YOUR website!
.
= ways.

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Comment from student: So, what does this equal to/ the final answer? Do you multiply �12*11*10*9� ,
which equals to �11880� over 1*2*3*4 which equals to 24? Does anything have to be reduced, to its lowest terms? Thanks.
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My response. Yes, everything have to be reduced.

For it, simply divide the numerator by denominator.

You can use your calculator.

As I see from your response, your knowledge on the subject are/is about zero.

To increase your knowledge, read the lessons
    - Introduction to Combinations
    - PROOF of the formula on the number of Combinations
    - Problems on Combinations
    - OVERVIEW of lessons on Permutations and Combinations
in this site.

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