document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=888266>Question 888266</A>: <I><SPAN STYLE=\"word-break: break-all;\"> 2.Padma purchased 30 kg of rice at the rate of tk 17.50 per kg and 30 kg rice at a certain rate. He mixed the two and sold the entire quantity at the rate of tk 18.60 per kg and made 20% overall profit. at what price per kg did he purchase the lot of another 30 kg rice??\r<BR>\n" );
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document.write( "3.The ratio of the number of boys and girls in a school is 3:2. If 20% of the boys and 25% of the girls are scholarship holders, what percentage of the students does not get the scholarship?<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #537277 by </B><A HREF=/tutors/aboutme.mpl?userid=ankor@dixie-net.com><B>ankor@dixie-net.com(22740)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ankor@dixie-net.com><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=ankor@dixie-net.com><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=537277\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 2.Padma purchased 30 kg of rice at the rate of tk 17.50 per kg and 30 kg rice at a certain rate.<BR>\n" );
document.write( " He mixed the two and sold the entire quantity at the rate of tk 18.60 per kg and made 20% overall profit.<BR>\n" );
document.write( " at what price per kg did he purchase the lot of another 30 kg rice??<BR>\n" );
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document.write( "Let x = price of the other rice<BR>\n" );
document.write( "Find the cost of the first rice<BR>\n" );
document.write( "30 * 17.50 = $525<BR>\n" );
document.write( "then<BR>\n" );
document.write( "total cost = 30x + 525<BR>\n" );
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document.write( "Find the revenue from selling 60 kg for 18.6<BR>\n" );
document.write( "60 * 18.6 = $1116, given as 20% above cost<BR>\n" );
document.write( "therefore<BR>\n" );
document.write( "1.2(30x + 525) = 1116<BR>\n" );
document.write( "36x + 630 = 1116<BR>\n" );
document.write( "36x = 1116 - 630<BR>\n" );
document.write( "x = 486/36<BR>\n" );
document.write( "x = $13.50 is cost per kg for the other rice<BR>\n" );
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document.write( "Check this, find the cost for each<BR>\n" );
document.write( "525 + 30(13.5) = $930<BR>\n" );
document.write( "A 20% increase: 1.2 * 930 = 1116<BR>\n" );
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document.write( "3.The ratio of the number of boys and girls in a school is 3:2.<BR>\n" );
document.write( " If 20% of the boys and 25% of the girls are scholarship holders,<BR>\n" );
document.write( " what percentage of the students does not get the scholarship?<BR>\n" );
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document.write( "Let x = the multiplier<BR>\n" );
document.write( "then<BR>\n" );
document.write( "3x = no. of boys<BR>\n" );
document.write( "2x = no. of girls<BR>\n" );
document.write( "therefore<BR>\n" );
document.write( "5x = total students<BR>\n" );
document.write( "then<BR>\n" );
document.write( ".20(3x) = .6x boys have scholarships<BR>\n" );
document.write( "and<BR>\n" );
document.write( ".25(2x) = .5x girls have scholarships<BR>\n" );
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document.write( "5x - .6x - .5x =  3.9x students did not have scholarships<BR>\n" );
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document.write( "Find the per cent that do not have scholarships<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%283.9x%29%2F%285x%29 ALIGN=MIDDLE  ALT=\"%283.9x%29%2F%285x%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > * 100 = 78%  </SPAN>\n" );
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