document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=989003>Question 989003</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Mrs Kumar paid $114 for 4 kg of prawns and 3 kg of crabs. If she had bought 3 kg of prawns and 5 kg of crabs instead, she would have to pay $21 more. What was the cost of 1 kg of crab? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #609446 by </B><A HREF=/tutors/aboutme.mpl?userid=macston><B>macston(5194)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=macston><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=macston><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=609446\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> .<BR>\n" );
document.write( "P=price/kg of prawns; C=price/kg of crabs<BR>\n" );
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document.write( "4kg(P)+3kg(C)=$114 Multiply this by 3.<BR>\n" );
document.write( "12kg(P)+9kg(C)=$342 Call this Equation 1. <BR>\n" );
document.write( "3kg(P)+5kg(C)=$135 Multiply this by 4.<BR>\n" );
document.write( "12kg(P)+20kg(C)=$540 Call this Equation 2.<BR>\n" );
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document.write( "Subtract Equation 1 from Equation 2:<BR>\n" );
document.write( ". 12kg(P)+20kg(C)=$540<BR>\n" );
document.write( "-(12kg(P)+ 9kg(C)=$342)<BR>\n" );
document.write( "--------------------------------<BR>\n" );
document.write( "11kg(C)=$198<BR>\n" );
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document.write( "C=$18/kg<BR>\n" );
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document.write( "ANSWER: One kilogram of crab cost $18. </SPAN>\n" );
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