document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=914247>Question 914247</A>: <I><SPAN STYLE=\"word-break: break-all;\"> In a survey of 40 musicians, it was found that 20 people played the piano 25 played the guitar and 7 play both instruments. Draw a Venn diagram that represents the situation.<BR>\n" );
document.write( "This is what I did. I drew an overlapping Venn diagram with 20 in one circle, 20 in the other and 7 in the middle and 5 outside the circle . I do not remember how I came about with the 5 but my professor said it's wrong. If you add 20+25=45 and It said there are 40 musicians so where did that extra 5 came from?<BR>\n" );
document.write( "Please help I am confused </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #554965 by </B><A HREF=/tutors/aboutme.mpl?userid=richwmiller><B>richwmiller(17219)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=richwmiller><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=richwmiller><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=554965\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Start with the 7 who play both<BR>\n" );
document.write( "If 7 play both and a total of 20  play the piano then (20-7=13) play only the guitar<BR>\n" );
document.write( "and 25-7=18 play only the guitar.<BR>\n" );
document.write( " so we have 13+ 7+ 18=38  which mean that 2 play neither </SPAN>\n" );
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