SOLUTION: In how many ways can 4 people be seated in a row of 12 chairs?

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Question 1178179: In how many ways can 4 people be seated in a row of 12 chairs?
Answer by ikleyn(52777) About Me  (Show Source):
You can put this solution on YOUR website!
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In 12*11*10*9 = 11880 ways.


    1-st person can occupy any of 12 chairs.

    2-nd person can occupy any of remaining 11 chairs.


        . . . and so on . . .

Solved and explained.

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This problem is on PERMUTATIONS.


On Permutations,  see introductory lessons
    - Introduction to Permutations
    - PROOF of the formula on the number of Permutations
    - Simple and simplest problems on permutations
    - Special type permutations problems
    - Problems on Permutations with restrictions
    - 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.