document.write( "Question 1101954: find the number of distinct permutations of the word BARRACKS \n" ); document.write( "

Algebra.Com's Answer #716592 by ikleyn(52788) $\"\"$ $\"About$

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document.write( "The word contains 8 letters;  of them,  the \"A\" repeats twice, and \"R\" repeats twice, too.\r\n" );
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document.write( "Thus the number of distinguishable arrangements of the letters is   = 10080.\r\n" );
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document.write( "First   2!  in the denominator stands to account for repeated  \"A\".\r\n" );
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document.write( "Second  2! in the denominator stands to account for repeated  \"R\".\r\n" );
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