document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=417903>Question 417903</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A computer assigns three-character log-in IDs that may contain the digits 0 to 9 as well as the letters a to z with repeats allowed.<BR>\n" );
document.write( "what is the probability that the ID will not contain an x?\r<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #292502 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=292502\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <BR>\n" );
document.write( "total no. of symbol that may be use = 26 + 10 = 36<BR>\n" );
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document.write( "no. of ways to form 3 character login id = 36*36*36\r<BR>\n" );
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document.write( "no. of ways to form login id without using x = 35*35*35 \r<BR>\n" );
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document.write( "probability = 35^3 / 36^3 \r<BR>\n" );
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document.write( "= (35/36)^3\r<BR>\n" );
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