document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=788607>Question 788607</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I need your help please! <BR>\n" );
document.write( "A library has 3 books from each of 5 different authors.<BR>\n" );
document.write( "How many ways can the library arrange the books on the shelf if books by the same author must be placed together? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #478580 by </B><A HREF=/tutors/aboutme.mpl?userid=Edwin+McCravy><B>Edwin McCravy(20054)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Edwin+McCravy><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/cgi-bin/show-face.mpl?user=Edwin+McCravy><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=478580\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> We can choose the author whose 3 books will be on the far left in 5 ways.<BR>\n" );
document.write( "We can choose the author whose 3 books will be 2nd from the left in 4 ways.<BR>\n" );
document.write( "We can choose the author whose 3 books will be in the middle in 3 ways.<BR>\n" );
document.write( "We can choose the author whose 3 books will be 2nd from the right in 2 ways.<BR>\n" );
document.write( "We can choose the author whose 3 books will be on the far right in only 1 way.\r<BR>\n" );
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document.write( "That's 5! ways to choose the order of authors left to right.\r<BR>\n" );
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document.write( "We can choose the order of books by the author whose books are on the far left in 3! ways.<BR>\n" );
document.write( "We can choose the order of books by the author whose books are 2nd from the left in 3! ways.<BR>\n" );
document.write( "We can choose the order of books by the author whose books are in the middle in 3! ways.<BR>\n" );
document.write( "We can choose the order of books by the author whose books are 2nd from the left in 3! ways.<BR>\n" );
document.write( "We can choose the order of books by the author whose books are on the far right in 3! ways.<BR>\n" );
document.write( "Answer 5!*3!*3!*3!*3!*3! = 933120\r<BR>\n" );
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document.write( "Edwin</pre> </SPAN>\n" );
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