document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1202976>Question 1202976</A>: <I><SPAN STYLE=\"word-break: break-all;\"> An absent-minded secretary randomly puts four letters into four envelopes. What is the probability that at least one of the letters will be in the correct envelopes. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #838195 by </B><A HREF=/tutors/aboutme.mpl?userid=Peter+Bai+><B>Peter Bai (1)</B></A><img src=\"/images/stars/iconNewId_16x16.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Peter+Bai+><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/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=838195\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Answer=5/8<BR>\n" );
document.write( "At least 1 envelope<BR>\n" );
document.write( "Therefore<BR>\n" );
document.write( "Minimum (1) to maximum (4)<BR>\n" );
document.write( "Number of ways in which the envelopes can be arranged=4!<BR>\n" );
document.write( "Now<BR>\n" );
document.write( "P=4C1/4!+4C2/4!+4C3/4!+4C4/4!<BR>\n" );
document.write( "P= 5/8 </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );