document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=409744>Question 409744</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A student must pick 5 books out of 20 to read in a specific order.  How many ways could the student do this? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #288407 by </B><A HREF=/tutors/aboutme.mpl?userid=sudhanshu_kmr><B>sudhanshu_kmr(1152)</B></A><img src=\"/images/stars/stars-12.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=sudhanshu_kmr><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=sudhanshu_kmr><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=288407\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> no. of ways to pick first book = 20 \r<BR>\n" );
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document.write( "no. of ways to pick second book = 19  ...........( except the first )\r<BR>\n" );
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document.write( "no. of ways to pick third book = 18 .......(except the first and second)\r<BR>\n" );
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document.write( "and so on........\r<BR>\n" );
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document.write( "now, total no. of ways to pick 5 books in a specific order = 20*19*18*17*16\r<BR>\n" );
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document.write( "=  1860480\r<BR>\n" );
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document.write( "another ways...\r<BR>\n" );
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document.write( "no. of ways to pick 5 books from 20 books in a specific order = 20P5 \r<BR>\n" );
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document.write( "= 20!/15!\r<BR>\n" );
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document.write( "= 1860480\r<BR>\n" );
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document.write( " </SPAN>\n" );
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