document.write( "Question 1165255: in how many ways can the letter of the word \"HELL\" be permuted, if the two 2LLs must always be apart. \n" ); document.write( "
Algebra.Com's Answer #789755 by math_helper(2461)\"\" \"About 
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There are 4!/2 = 12 unique arrangements of the letters \"HELL\" (because the L's are indistinguishable).
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\n" ); document.write( "\n" ); document.write( "From this, we must subtract 3! = 6 cases where the L's are together. Thus there are 12-6 = \"+highlight%28+6+%29+\" arrangements meeting the requirement.
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