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Find the number of ways of arranging the letters of FLUFFY so that no two F's are adjacent.

 Jul 10, 2020
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The only permutations that don't have 2 Fs next to each other is due other 3 letters L, U, Y plus the third F=4!

or 24 permutations out of a total of 6!/3! =120 permutations. The other 120 - 24 =96 will have at least 2 Fs together (which includes having 3 Fs together).

 Jul 10, 2020
edited by Guest  Jul 10, 2020

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