SOLUTION: How many words can be written using all the letters of the word "IRRATIONAL"?

Question 1184221: How many words can be written using all the letters of the word "IRRATIONAL"?
Answer by ikleyn(52787) (Show Source): You can put this solution on YOUR website!
.


Count the number of letters, in total :  10.


Count the multiplicities or repeating letters :  2  for  " I ";

                                                 2  for  " R ";

                                                 2  for  " A ".


Write the formula and calculate


    The number of all possible distinguishable arrangements =  =  = 453600.    ANSWER

Solved.

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To see other similar solved problems, look into 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.

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