document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1121805>Question 1121805</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A juice seller sells juice in small, medium and large glasses. <BR>\n" );
document.write( "The cost of a small glass is Rs7, the cost of a medium glass is Rs10 and the cost of the glass glass is Rs12. <BR>\n" );
document.write( "The number of small glasses of juice sold was x. <BR>\n" );
document.write( "The number of medium glasses sold was twice the number of small glasses of juice sold.<BR>\n" );
document.write( "The number of large glasses of juice sold was 20 more than the number of medium glasses of juice sold.<BR>\n" );
document.write( "Given that Rs2790 was received from the sale of the juice, find the total number of glasses of juice sold.  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #737798 by </B><A HREF=/tutors/aboutme.mpl?userid=Theo><B>Theo(13342)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Theo><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=Theo><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=737798\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> the cost of a small glass is 7 rs.<BR>\n" );
document.write( "the cost of a medium glass is 10 rs.<BR>\n" );
document.write( "the cost of a large glass is 12 rs.<BR>\n" );
document.write( "the number of small glasses is x.<BR>\n" );
document.write( "the number of medium glasses sold was twice the number of small glasses of juice sold.<BR>\n" );
document.write( "that gets you 2x for the number of medium glasses sold.<BR>\n" );
document.write( "the number of large glasses sold was 20 more than the number of medium glass sold.<BR>\n" );
document.write( "that gets you 2x + 20 for the number of large glasses sold.<BR>\n" );
document.write( "revenue from selllng the glasses was a total of 2790 rs.\r<BR>\n" );
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document.write( "your equation for the total cost would be:\r<BR>\n" );
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document.write( "7 * x + 10 * 2x + 12 * (2x + 20) = 2790.\r<BR>\n" );
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document.write( "7 * x is the total revenue from selling the small glasses.<BR>\n" );
document.write( "10 * 2x is the total revenue from selling the medium glasses.<BR>\n" );
document.write( "2x + 20 is the total revenue from selling the large glasses.\r<BR>\n" );
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document.write( "simplify this eqution to get:\r<BR>\n" );
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document.write( "7x + 20x + 24x + 240 = 2790\r<BR>\n" );
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document.write( "combine like terms to get:\r<BR>\n" );
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document.write( "51x + 240 = 2790\r<BR>\n" );
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document.write( "subtract 240 from both sides of this equation to get:\r<BR>\n" );
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document.write( "51x = 2790 - 240 = 2550\r<BR>\n" );
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document.write( "divide both sides of this equation by 51 to get:\r<BR>\n" );
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document.write( "x = 2550 / 51 = 50.\r<BR>\n" );
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document.write( "the number 0f small glasses sold was equal to x which is equal to 50.<BR>\n" );
document.write( "the number of medium glasses sold was equal to 2x which is equal to 100.<BR>\n" );
document.write( "the number of large glasses sold was equal to 2x + 20 which is equal to 120.\r<BR>\n" );
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document.write( "50 * 7 rs each = 350 rs.<BR>\n" );
document.write( "100 * 10 rs each = 1000 rs.<BR>\n" );
document.write( "120 * 12 rs each = 1440 rs.\r<BR>\n" );
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document.write( "total rs = 350 + 1000 + 1440 = 2790.\r<BR>\n" );
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document.write( "this confirms the solution is correct.\r<BR>\n" );
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document.write( "solution is:\r<BR>\n" );
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document.write( "the total number of glasses sold is 50 + 100 + 120 = 270.\r<BR>\n" );
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document.write( " </SPAN>\n" );
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