SOLUTION: A school principal has to choose 5 from his 15 teachers to help in preparing the venue for a meeting. In how many ways can he do it?

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Question 1179171: A school principal has to choose 5 from his 15 teachers to help in preparing the venue for a meeting. In how many ways can he do it?
Answer by ikleyn(52781) About Me  (Show Source):
You can put this solution on YOUR website!
.

In  C%5B15%5D%5E5 = %2815%2A14%2A13%2A12%2A11%29%2F%281%2A2%2A3%2A4%2A5%29  different ways.


Use your calculator.


You are instructed.

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This problem is on  COMBINATIONS.

On Combinations,  see introductory 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.

Also,  you have this free of charge online textbook in ALGEBRA-II in this site
    - ALGEBRA-II - YOUR ONLINE TEXTBOOK.

The referred lessons are the part of this online textbook under the topic  "Combinatorics: Combinations and permutations".


Save the link to this textbook together with its description

Free of charge online textbook in ALGEBRA-II
https://www.algebra.com/algebra/homework/complex/ALGEBRA-II-YOUR-ONLINE-TEXTBOOK.lesson

into your archive and use when it is needed.