document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=253195>Question 253195</A>: <I><SPAN STYLE=\"word-break: break-all;\"> In a group of 80 high school student, 30 study Spanish, 40 study French, and 25 study neither Spanish nor French. How many of 80 students study both Spanish and French?\r<BR>\n" );
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document.write( " (A) 18    (B) 15    (C) 20    (D) 16    (E) 13 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #185419 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=185419\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\">  In a group of 80 high school student, 30 study Spanish, 40 study French, and 25 study neither Spanish nor French. How many of 80 students study both Spanish and French?<BR>\n" );
document.write( "(s and f) = s + f - (s or f)<BR>\n" );
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document.write( "Note:<BR>\n" );
document.write( "(s or f) = 80-(s or f)' = 80 - 25 = 55<BR>\n" );
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document.write( "Therefore:<BR>\n" );
document.write( "s and f = 30 + 40 - 55<BR>\n" );
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document.write( "s and f = 15<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
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document.write( "(A) 18 (B) 15 (C) 20 (D) 16 (E) 13<BR>\n" );
document.write( " </SPAN>\n" );
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