document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=830907>Question 830907</A>: <I><SPAN STYLE=\"word-break: break-all;\"> on a shop, two different types of sugar packets are sold, which costs 50 Rs each and 70 Rs each, respectively. If the shopkeeper sales 60 packages and have a total revenue of 3200. How many packets he sold of 50 Rs? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #500998 by </B><A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><B>josgarithmetic(39618)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><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/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=500998\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> x for how many of the 50 Rs priced<BR>\n" );
document.write( "y for how many of the 70 Rs priced\r<BR>\n" );
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document.write( "x+y=60 according to the description;<BR>\n" );
document.write( "50x+70y=3200 also described.  Simplify this one to 5x+7y=320.\r<BR>\n" );
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document.write( "Solve the system for x and y.<BR>\n" );
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document.write( "x+y=60<BR>\n" );
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document.write( "5x+7y=320<BR>\n" );
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document.write( "One way is multiply the package count equation by 5 and subtract from the revenue equation:\r<BR>\n" );
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document.write( "5x+7y-(5x+5y)=320-5*60<BR>\n" );
document.write( "2y=20<BR>\n" );
document.write( "y=10, meaning that x=50 </SPAN>\n" );
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