SOLUTION: in a group of students 9 speak vietnamese fluently and 12 speak chinese fluently, in how many ways can 4 vietnamese fluent speakers be chosen and 5 chinese speakers can be chosen

Question 1169734: in a group of students 9 speak vietnamese fluently and 12 speak chinese fluently, in how many ways can 4 vietnamese fluent speakers be chosen and 5 chinese speakers can be chosen
Answer by ikleyn(52781) (Show Source): You can put this solution on YOUR website!
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You choose by     ways from the V-group and

           by    ways from the C-group.


Calculate the numbers and them MULTIPLY them.

-------------

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.

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