SOLUTION: How many different arrangements of letters in the word QABABA are possible

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Question 1142896: How many different arrangements of letters in the word QABABA are possible
Answer by ikleyn(52803) About Me  (Show Source):
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The given words has 6 letters; of them, the letter "A" repeats 3 times and letter "B" repeats 2 times.


The answer is  6%21%2F%283%21%2A2%21%29 = %286%2A5%2A4%29%2F2 = 60.


In the formula,  3!  stands to account for the letter "A" repeating thrice, and 2!  stands to account for the letter "B", repeating twice.

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See the lesson
    - Arranging elements of sets containing indistinguishable elements
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 lesson is 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.