document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=747323>Question 747323</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A 60 oz solution has a salt concentration of 20% .  How many ounces of pure salt must be added to the solution to raise its concentration to 25% ? \r<BR>\n" );
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document.write( "I wasn't sure but I kept getting 12 oz and 240 oz. I'm pretty sure both of them are wrong </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #454820 by </B><A HREF=/tutors/aboutme.mpl?userid=Alan3354><B>Alan3354(69443)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Alan3354><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=Alan3354><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=454820\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A 60 oz solution has a salt concentration of 20% .  How many ounces of pure salt must be added to the solution to raise its concentration to 25% ? <BR>\n" );
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document.write( "Algebra method:<BR>\n" );
document.write( "60*20 + x*100 = (60+x)*25<BR>\n" );
document.write( "100x + 1200 = 25x + 1500<BR>\n" );
document.write( "75x = 300<BR>\n" );
document.write( "x = 4 oz<BR>\n" );
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document.write( "A logical method:<BR>\n" );
document.write( "60*0.20 = 12 oz of salt --> 48 oz of water.<BR>\n" );
document.write( "25% salt --> 75% water<BR>\n" );
document.write( "To make 48 oz of water = 75% the total solution = 64 oz<BR>\n" );
document.write( "64 - 60 = 4 oz\r<BR>\n" );
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