document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=7>Question 7</A>: <I><SPAN STYLE=\"word-break: break-all;\"> How many liters of pure water should be evaporated(removed) from 160 liters of 12% saline(salt) solution so that the solution that remains is a 20% solution? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #85 by </B><A HREF=/tutors/aboutme.mpl?userid=ichudov><B>ichudov(507)</B></A><img src=\"/images/stars/stars-10.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ichudov><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=ichudov><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=85\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> In 160 liters of 12% salt solution, there is 160 * 0.12 liters of pure salt. That's 160*0.12 = 19.2 liters of salt. To make it a 20% solution, you have to have 5 times more than than, that is, 96 liters. Since you have 160 liters now, you need to evaporate 160-96 liters, or 64 liters of water. </SPAN>\n" );
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