document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=925983>Question 925983</A>: <I><SPAN STYLE=\"word-break: break-all;\"> In how many ways can 4 large books, 3 medium- size books, and 2 small books, be placed on a shelf so that all books of the same size are together </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #561896 by </B><A HREF=/tutors/aboutme.mpl?userid=srinivas.g><B>srinivas.g(540)</B></A><img src=\"/images/stars/stars-10.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=srinivas.g><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=srinivas.g><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=561896\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> let as assume 4 large books as 1 unit and  3 medium- size book as another unit and 2 small books as one more unit<BR>\n" );
document.write( "these 3 units can be arranged in  3! ways<BR>\n" );
document.write( "first unit consist of 4 large books. these books can be internally arranged in 4! ways<BR>\n" );
document.write( "second unit consist of 3 medium sized books. these books can be internally arranged in 3! ways<BR>\n" );
document.write( "third  unit consist of 2 small books. these books can be internally arranged in 2! ways\r<BR>\n" );
document.write( "\n" );
document.write( "Total no of ways  =  3! * 4!*3!*2!<BR>\n" );
document.write( "3 !  = 3x2x1 = 6<BR>\n" );
document.write( "4!~=4x3x2x1 = 24<BR>\n" );
document.write( "2! = 2x1 =2<BR>\n" );
document.write( " result  =  3! * 4!*3!*2! <BR>\n" );
document.write( "          = 6*24*6*2<BR>\n" );
document.write( "          =1728 </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );