document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1189185>Question 1189185</A>: <I><SPAN STYLE=\"word-break: break-all;\"> All the survivors who live in a certain a post-apocalyptic settlement spend their miserable days hunting mutant buffalo or growing broccoli, and some do both. If, in total, 45 survivors grow broccoli, 30 hunt, and 37 of them perform only one of those tasks, how many perform both tasks? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #820462 by </B><A HREF=/tutors/aboutme.mpl?userid=Boreal><B>Boreal(15235)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Boreal><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=Boreal><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=820462\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> p(A or B)=p(A)+p(B)-p(A and B)<BR>\n" );
document.write( "rather than use probability here, just use the numerator<BR>\n" );
document.write( "There are 45 survivors.<BR>\n" );
document.write( "45=30+37-both<BR>\n" );
document.write( "both=22 of them </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );