document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1070266>Question 1070266</A>: <I><SPAN STYLE=\"word-break: break-all;\"> how many ways can 8 students in an examination hall be seated in a row if .the best friends dan and eben must seat together </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #685379 by </B><A HREF=/tutors/aboutme.mpl?userid=ikleyn><B>ikleyn(52802)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ikleyn><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=ikleyn><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=685379\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> .<BR>\n" );
document.write( "The answer is 2*7! = 10080 ways.\r<BR>\n" );
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document.write( "7! accounts for permutations of 7 objects when you consider D an E as one entity.\r<BR>\n" );
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document.write( "The factor 2 accounts for the fact that in every permutations of 7 objects the entity DE can also go as ED.\r<BR>\n" );
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