document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=511410>Question 511410</A>: <I><SPAN STYLE=\"word-break: break-all;\"> How much water should be added to 100 liters of 90% alcohol concentration to dilute it to 75% alcohol concentration? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #342567 by </B><A HREF=/tutors/aboutme.mpl?userid=Maths68><B>Maths68(1474)</B></A><img src=\"/images/stars/stars-12.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Maths68><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=Maths68><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=342567\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Solution A<BR>\n" );
document.write( "Amount = x <BR>\n" );
document.write( "Concentration =0% =0 (It is pure water so concentration of Acohoal wil be zero)\r<BR>\n" );
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document.write( "Solution B<BR>\n" );
document.write( "Amount = 100 <BR>\n" );
document.write( "Concentration =90% = 0.9\r<BR>\n" );
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document.write( "Resultant Solution<BR>\n" );
document.write( "Amount =100+x <BR>\n" );
document.write( "Concentration =75%=0.75\r<BR>\n" );
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document.write( "[Amount Solution A * Concentration A] + [Amount Solution B * Concentration of B] = Amount of Resultant * Concentration of resultant\r<BR>\n" );
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document.write( "(0)x+(0.9)(100)=(100+x)(0.75)<BR>\n" );
document.write( "90=75+0.75x<BR>\n" );
document.write( "90-75=0.75x<BR>\n" );
document.write( "15=0.75x<BR>\n" );
document.write( "15/0.075=x<BR>\n" );
document.write( "20=x\r<BR>\n" );
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document.write( "Solution A<BR>\n" );
document.write( "Amount = x =20 liters<BR>\n" );
document.write( "Concentration =0% =0 (It is pure water so concentration of Acohoal wil be zero)\r<BR>\n" );
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document.write( "Solution B<BR>\n" );
document.write( "Amount = 100 <BR>\n" );
document.write( "Concentration =90% = 0.9\r<BR>\n" );
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document.write( "Resultant Solution<BR>\n" );
document.write( "Amount =100+x =100+20=120 liters<BR>\n" );
document.write( "Concentration =75%=0.75\r<BR>\n" );
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document.write( "Result<BR>\n" );
document.write( "---------<BR>\n" );
document.write( "20 liters water should be added to 100 liters of 90% alcohol concentration to dilute it to 75% alcohol concentration.<BR>\n" );
document.write( " </SPAN>\n" );
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