document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=41121>Question 41121</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Having some difficulty with this type of problem:\r<BR>\n" );
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document.write( "Account numbers for Western Oil Company consist of five digits. If the first digit cannot be 0 or 1 how many account numbers are possible? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #26532 by </B><A HREF=/tutors/aboutme.mpl?userid=psbhowmick><B>psbhowmick(878)</B></A><img src=\"/images/stars/stars-11.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=psbhowmick><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=psbhowmick><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=26532\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Last digit can be any number chosen from 0 through 9. <BR>\n" );
document.write( "So there are 10 possibile values for the last digit.<BR>\n" );
document.write( "In a similar way there can are 10 possible values of each of the 2nd, 3rd and 4th digit.<BR>\n" );
document.write( "So the last 4 digits can be chosen in <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=10%2A10%2A10%2A10 ALIGN=MIDDLE  ALT=\"10%2A10%2A10%2A10\"   DISABLED_style= \"max-width:90%; height:auto;\" > = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=10%5E4 ALIGN=MIDDLE  ALT=\"10%5E4\"   DISABLED_style= \"max-width:90%; height:auto;\" > ways.<BR>\n" );
document.write( "The first digit can neither be 1 nor be 0.<BR>\n" );
document.write( "So its value has to be chosen from numbers 2 through 9 i.e. from 8 numbers.<BR>\n" );
document.write( "So the number of five digit numbers that can be formed with given constriction are <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=8%2A10%5E4 ALIGN=MIDDLE  ALT=\"8%2A10%5E4\"   DISABLED_style= \"max-width:90%; height:auto;\" > = 80000. </SPAN>\n" );
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