SOLUTION: From a set of 12 math books, 13 science books, and 10 literature books, in how many ways can a student select 2 from each set?
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Question 1149140: From a set of 12 math books, 13 science books, and 10 literature books, in how many ways can a student select 2 from each set?
Answer by ikleyn(52781) (Show Source): You can put this solution on YOUR website!
.
In ** = = 231660 ways.
Solved and answered.
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in my solution is the number of COMBINATIONS of "m" items taken "n" at a time.
For introductory lessons on COMBINATIONS see
- 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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