document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=887664>Question 887664</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The price of sugar decreased by 20% and this decrease in price enables a man to purchase 1kg more of sugar for Rs. 90/-. find the present as well as the previous price of sugar per kg. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #536801 by </B><A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><B>josgarithmetic(39616)</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=536801\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Let p = the original price<BR>\n" );
document.write( "Let q = the original quantity purchased<BR>\n" );
document.write( "ASSUME that the original purchase for for Rs. 90 AND this is the same amount of Rs. for the purchase at the reduced price (which was actually given).\r<BR>\n" );
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document.write( "Before the discount,  <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=p%2Aq=90 ALIGN=MIDDLE  ALT=\"p%2Aq=90\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "After new discount price, <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%280.8%29p%28q%2B1%29=90 ALIGN=MIDDLE  ALT=\"%280.8%29p%28q%2B1%29=90\"   DISABLED_style= \"max-width:90%; height:auto;\" >, 80% of original price is same as 20% discount price.\r<BR>\n" );
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document.write( "At discount, simplification...  <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=0.8pq%2B0.8p=90 ALIGN=MIDDLE  ALT=\"0.8pq%2B0.8p=90\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=pq%2Bp=90%2F0.8 ALIGN=MIDDLE  ALT=\"pq%2Bp=90%2F0.8\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=pq%2Bp=225%2F2 ALIGN=MIDDLE  ALT=\"pq%2Bp=225%2F2\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Substitute using \"before\" equation,<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=90%2Bp=225%2F2 ALIGN=MIDDLE  ALT=\"90%2Bp=225%2F2\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=p=225%2F2-90 ALIGN=MIDDLE  ALT=\"p=225%2F2-90\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%28p=22.5%29 ALIGN=MIDDLE  ALT=\"highlight%28p=22.5%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > Rs. The original or previous price.\r<BR>\n" );
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document.write( "You want to find 80% of 22.5 for knowing the discount price. </SPAN>\n" );
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