document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=205807>Question 205807</A>: <I><SPAN STYLE=\"word-break: break-all;\"> 5. use the union rule to answer the question<BR>\n" );
document.write( "If n(a)=40,n (b) =117,and n (a u b)= 137 what is n (A n B)<BR>\n" );
document.write( "A.60<BR>\n" );
document.write( "B.20<BR>\n" );
document.write( "C.10<BR>\n" );
document.write( "D.22 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #155426 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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=155426\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> use the union rule to answer the question<BR>\n" );
document.write( "If n(a)=40,n (b) =117,and n (a u b)= 137 what is n (A n B)<BR>\n" );
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document.write( "(A n B) = A + B - (A u B)<BR>\n" );
document.write( "(A n B) = 40 + 117 - 137 = 20<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
document.write( "------------------------------------\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "A.60<BR>\n" );
document.write( "B.20<BR>\n" );
document.write( "C.10<BR>\n" );
document.write( "D.22\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );