document.write( "Question 781430: If Benny has 5 different pens in how many different ways can he arrange them? \n" ); document.write( "
Algebra.Com's Answer #475925 by dkppathak(439)\"\" \"About 
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number of permutation in a line =n factorial
\n" ); document.write( "total number of pen are 5
\n" ); document.write( "so total permutation =5 factorial
\n" ); document.write( " =5x4x3x2x1=120
\n" ); document.write( "answer 120
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