document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=939056>Question 939056</A>: <I><SPAN STYLE=\"word-break: break-all;\"> In a sale, there is twenty-five per cent off all prices. <BR>\n" );
document.write( "A tv costs £90 in the sale. <BR>\n" );
document.write( "How much was it before the sale?\r<BR>\n" );
document.write( "\n" );
document.write( " </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #572134 by </B><A HREF=/tutors/aboutme.mpl?userid=srinivas.g><B>srinivas.g(540)</B></A><img src=\"/images/stars/stars-10.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=srinivas.g><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=srinivas.g><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=572134\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Let x be the cost of TV before sale<BR>\n" );
document.write( "In sale,cost=£90<BR>\n" );
document.write( "25% off on price<BR>\n" );
document.write( "Off  on price=25%of x<BR>\n" );
document.write( "  =<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%2825%2F100%29%2Ax ALIGN=MIDDLE  ALT=\"%2825%2F100%29%2Ax\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "=0.25 x<BR>\n" );
document.write( "Hence x-0.25x=90<BR>\n" );
document.write( "   X(1-0.25)=90<BR>\n" );
document.write( "X(0.75)=90<BR>\n" );
document.write( "Divide with 0.75 on both sides<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x%2A0.75%2F0.75=90%2F0.75 ALIGN=MIDDLE  ALT=\"x%2A0.75%2F0.75=90%2F0.75\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "X=120<BR>\n" );
document.write( "Result:price before sale(x)=£120 </SPAN>\n" );
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