document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1192319>Question 1192319</A>: <I><SPAN STYLE=\"word-break: break-all;\"> 50% people use cell phone for writing notes,40% use paper,20% people use both,if a person is selected at random find the probability that he uses neither for taking  notes?<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 #824237 by </B><A HREF=/tutors/aboutme.mpl?userid=greenestamps><B>greenestamps(13334)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=greenestamps><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=greenestamps><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=824237\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <br><BR>\n" );
document.write( "Since 20% use both, the 50% the use cell phone consist of 30% who use ONLY cell phone and 20% who use both.<br><BR>\n" );
document.write( "Likewise, the 40% who use paper consist of 20% who use ONLY paper and 20% who use both.<br><BR>\n" );
document.write( "So we have<BR>\n" );
document.write( "30% who use cell phone only;<BR>\n" );
document.write( "20% who use paper only; and<BR>\n" );
document.write( "20% who use both.<br><BR>\n" );
document.write( "That's a total of 70% who use either cell phone or paper; that leaves 30% who use neither.<br><BR>\n" );
document.write( "ANSWER: 30%<br><BR>\n" );
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