document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=263107>Question 263107</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Jim can fill a pool carrying buckets of water in 30 minutes. Sue can do the same job in 45 minutes. Tony can do the same job in 1 ½ hours. How quickly can all three fill the pool together? \r<BR>\n" );
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document.write( "A. 12 minutes <BR>\n" );
document.write( "B. 15 minutes <BR>\n" );
document.write( "C. 21 minutes <BR>\n" );
document.write( "D. 23 minutes <BR>\n" );
document.write( "E. 28 minutes \r<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 #193839 by </B><A HREF=/tutors/aboutme.mpl?userid=josmiceli><B>josmiceli(19441)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=josmiceli><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=josmiceli><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=193839\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Add their rates of filling the pool to get<BR>\n" );
document.write( "their rate working together<BR>\n" );
document.write( "Jim's rate = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=1%2F30 ALIGN=MIDDLE  ALT=\"1%2F30\"   DISABLED_style= \"max-width:90%; height:auto;\" > or one pool in 30 min<BR>\n" );
document.write( "Sue's rate = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=1%2F45 ALIGN=MIDDLE  ALT=\"1%2F45\"   DISABLED_style= \"max-width:90%; height:auto;\" > or one pool in 45 min<BR>\n" );
document.write( "Tony's rate = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=1%2F90 ALIGN=MIDDLE  ALT=\"1%2F90\"   DISABLED_style= \"max-width:90%; height:auto;\" > or one pool in 90 min<BR>\n" );
document.write( "Let <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x ALIGN=MIDDLE  ALT=\"x\"   DISABLED_style= \"max-width:90%; height:auto;\" > = time it takes for all 3 working together<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=1%2F30+%2B+1%2F45+%2B+1%2F90+=+1%2Fx ALIGN=MIDDLE  ALT=\"1%2F30+%2B+1%2F45+%2B+1%2F90+=+1%2Fx\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Multiply both sides by <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=90x ALIGN=MIDDLE  ALT=\"90x\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=3x+%2B+2x+%2B+x+=+90 ALIGN=MIDDLE  ALT=\"3x+%2B+2x+%2B+x+=+90\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=6x+=+90 ALIGN=MIDDLE  ALT=\"6x+=+90\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x+=+15 ALIGN=MIDDLE  ALT=\"x+=+15\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Working together, it takes them 15 min to fill the pool<BR>\n" );
document.write( "The answer is B<BR>\n" );
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