document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=252436>Question 252436</A>: <I><SPAN STYLE=\"word-break: break-all;\"> the phone numbers in a certain city consist of the prefix 123,234, or 345,followed<BR>\n" );
document.write( "by four distinct digits from 0 to 9 how many such phone numbers are possible ?\r<BR>\n" );
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document.write( "a 49   b  102  c  5043 d  15120   e  604800 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #184347 by </B><A HREF=/tutors/aboutme.mpl?userid=richwmiller><B>richwmiller(17219)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=richwmiller><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=richwmiller><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=184347\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> I believe the answer 5040 provided by the other tutor was for one prefix so you need to multiply by 3 which yields 15120 for the final number which is letter d<BR>\n" );
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