document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=311230>Question 311230</A>: <I><SPAN STYLE=\"word-break: break-all;\"> You are generating pin codes for ATM cards.  Each pin code has 5 places, and each place can be a small letter or a number between 0 and 9.  No letter or number can be used more than once.  How many different codes are there?\r<BR>\n" );
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document.write( "a)  _10_ * _9_ * _8_ * _26_ * _25_		c)  26! + 10!\r<BR>\n" );
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document.write( "b)  _36_ * _35_ * _34_ * _33_ * _32_	d)  _35_ * _34_ * _33_ * _32_ * _31_<BR>\n" );
document.write( " I thought the answer was d but i got it wrong can you explain why? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #222606 by </B><A HREF=/tutors/aboutme.mpl?userid=Fombitz><B>Fombitz(32388)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Fombitz><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=Fombitz><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=222606\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Your first place choice is out of 26 letters+10 numbers=36 total. <BR>\n" );
document.write( "Then the second place is out of 35, since you cannot use the one you already chose. <BR>\n" );
document.write( "Third, out of 34.<BR>\n" );
document.write( "Fourth, out of 33.<BR>\n" );
document.write( "Fifth, out of 32.<BR>\n" );
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document.write( "b) is the correct answer.  </SPAN>\n" );
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