document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=249334>Question 249334</A>: <I><SPAN STYLE=\"word-break: break-all;\"> How many gallons of a 10% salt solution should be added to 20 gallons of a 60% salt solution to obtain a 50% salt solution? </SPAN>\n" );
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document.write( "Let x be the number of gallons of 10% solution to be added. Then:\r<BR>\n" );
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document.write( ".6*20 + .1*x = .5*(20+x)<BR>\n" );
document.write( "12 + .1*x = 10 + .5x<BR>\n" );
document.write( ".4*x = 2<BR>\n" );
document.write( "4*x = 20<BR>\n" );
document.write( "x = ?\r<BR>\n" );
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document.write( " </SPAN>\n" );
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