document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1013544>Question 1013544</A>: <I><SPAN STYLE=\"word-break: break-all;\">  A Chemist has 100g of 25% acid solution. How much of these solution he needs to drain and replaced with 70% acid solution to obtain 100g of 60% acid solution </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #854466 by </B><A HREF=/tutors/aboutme.mpl?userid=greenestamps><B>greenestamps(13347)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=greenestamps><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=greenestamps><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=854466\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <br><BR>\n" );
document.write( "Here is a solution using a non-traditional method that can be used to solve any 2-part mixture problem like this.  This method can be especially fast and easy if the numbers in the problem are \"nice\" (which in this problem they are not....)<br><BR>\n" );
document.write( "(1) Use a number line if it helps to observe/calculate that 60% is 35/45 = 7/9 of the way from 25% to 70%.<BR>\n" );
document.write( "(2) That means 7/9 of the mixture must be the 70% acid solution which is being added.<br><BR>\n" );
document.write( "7/9 of 100g is 700/9 grams.<br><BR>\n" );
document.write( "ANSWER: 700/9 grams<br><BR>\n" );
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