document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=321191>Question 321191</A>: <I><SPAN STYLE=\"word-break: break-all;\"> stan..if you can help me out once more i would appreciate so much :)<BR>\n" );
document.write( "a combination lock has digits from 0 to 39.  three numbers are required to open.<BR>\n" );
document.write( "how many combinations are possible if you cannot repeat any digits?<BR>\n" );
document.write( "how many combination are possible if you cannot have the same digit twice in a row?<BR>\n" );
document.write( "this is what i came up with..59,280 for first one and can't figure out second one:( </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #230019 by </B><A HREF=/tutors/aboutme.mpl?userid=Alan3354><B>Alan3354(69443)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Alan3354><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=Alan3354><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=230019\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> a combination lock has digits from 0 to 39. three numbers are required to open.<BR>\n" );
document.write( "how many combinations are possible if you cannot repeat any digits?<BR>\n" );
document.write( "40*39*38 = 59280<BR>\n" );
document.write( "--------------------------<BR>\n" );
document.write( "how many combination are possible if you cannot have the same digit twice in a row?<BR>\n" );
document.write( "Call the number F, S and T for 1st, 2nd and 3rd<BR>\n" );
document.write( "F is 1/40<BR>\n" );
document.write( "S is any but F, = 1/39<BR>\n" );
document.write( "T is any but S, = 1/39<BR>\n" );
document.write( "40*39*39 = 60840\r<BR>\n" );
document.write( "\n" );
document.write( "this is what i came up with..59,280 for first one and can't figure out second one:( </SPAN>\n" );
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