SOLUTION: Find the number of distinguishable permutations of the letters int he words Alabama,algebra and florida

Algebra.Com
Question 872973: Find the number of distinguishable permutations of the letters int he words Alabama,algebra and florida
Answer by Edwin McCravy(20056)   (Show Source): You can put this solution on YOUR website!
If "ALABAMA" were written so that the A's were of different colors,
like this, "ALABAMA", the number of permutations would be 7!.  However,
since the four A's look exactly alike in "ALABAMA", the number of
distinguishable permutations is much smaller.  So what we do is start 
with the 7! arrangements of "ALABAMA", and divide by the number of ways
the four A's can be arranged within each permutation, so that in effect
they will all be counted only once.

So the answer is  =  = 210. 

"ALGEBRA" has  =  = 2520 distinguishable permutations, we only need 
to divide by 2 because there are only 2 A's that are indistinguishable.

FLORIDA has 7! = 5040 distinguishable permutations.  We don't need to 
divide by anything because all 7 letters are distinguishable.  

Edwin

RELATED QUESTIONS

Find the number of distinguishable permutations in the letters in the words puppy and... (answered by ewatrrr,stanbon)
Find the number of distinguishable permutations of the letters int the word pencil (answered by ewatrrr)
Determine the number of distinguishable words that can be formed from the letters of... (answered by nyc_function)
find the number of distinguishable permutations of the letters... (answered by greenestamps)
Find the number of distinguishable permutations of the letters in he word dad & oregon (answered by ewatrrr)
Find the number of distinguishable permutations of the letters of the word... (answered by Theo)
Find the number of distinguishable permutations of the letters of the word... (answered by greenestamps,ikleyn)
1. Find the number of distinguishable permutations of the letters of the word... (answered by math_helper)
Find the number of distinguishable permutations of the letters in the word... (answered by ewatrrr)