SOLUTION: a class has 30 students the class needs to select 3 representative.in how many ways can be done?
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Question 1092855
:
a class has 30 students the class needs to select 3 representative.in how many ways can be done?
Answer by
ikleyn(52776)
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You can
put this solution on YOUR website!
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= calculate it on your own.
It is the number of combinations of 30 items taken 3 at a time.
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On Combinations, see the lessons
-
Introduction to Combinations
-
PROOF of the formula on the number of Combinations
-
Problems on 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.
