document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=739954>Question 739954</A>: <I><SPAN STYLE=\"word-break: break-all;\"> find the average speed of a motorcyclist if he drives from A to B with a uniform speed of 30kmph and returns back with a speed of 20kmph. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #451432 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=451432\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> What the average is NOT is the average of the<BR>\n" );
document.write( "2 speeds, which would be <BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+%28+30+%2B+20+%29+%2F+2+=+25+ ALIGN=MIDDLE  ALT=\"+%28+30+%2B+20+%29+%2F+2+=+25+\"   DISABLED_style= \"max-width:90%; height:auto;\" > km<BR>\n" );
document.write( "-------------------------<BR>\n" );
document.write( "The average speed is ALWAYS<BR>\n" );
document.write( "( total distance ) / ( total time )<BR>\n" );
document.write( "--------------------------<BR>\n" );
document.write( "No distance is given, so I can assign any<BR>\n" );
document.write( "distance I want, so I will say that the one-way<BR>\n" );
document.write( "distance is <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+100+ ALIGN=MIDDLE  ALT=\"+100+\"   DISABLED_style= \"max-width:90%; height:auto;\" > km<BR>\n" );
document.write( "----------------------<BR>\n" );
document.write( "A to B<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+100+=+30%2At%5B1%5D+ ALIGN=MIDDLE  ALT=\"+100+=+30%2At%5B1%5D+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+t%5B1%5D+=+10%2F3+ ALIGN=MIDDLE  ALT=\"+t%5B1%5D+=+10%2F3+\"   DISABLED_style= \"max-width:90%; height:auto;\" > hrs<BR>\n" );
document.write( "---------------<BR>\n" );
document.write( "B to A<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+100+=+20%2At%5B2%5D+ ALIGN=MIDDLE  ALT=\"+100+=+20%2At%5B2%5D+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+t%5B2%5D+=+5+ ALIGN=MIDDLE  ALT=\"+t%5B2%5D+=+5+\"   DISABLED_style= \"max-width:90%; height:auto;\" > hrs<BR>\n" );
document.write( "--------------<BR>\n" );
document.write( "The total distance is <BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+100+%2B+100+=+200+ ALIGN=MIDDLE  ALT=\"+100+%2B+100+=+200+\"   DISABLED_style= \"max-width:90%; height:auto;\" > km<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+t%5B1%5D+%2B+t%5B2%5D+=+5+%2B+10%2F3+ ALIGN=MIDDLE  ALT=\"+t%5B1%5D+%2B+t%5B2%5D+=+5+%2B+10%2F3+\"   DISABLED_style= \"max-width:90%; height:auto;\" > hrs<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+5+%2B+10%2F3+=+15%2F3+%2B+10%2F3+ ALIGN=MIDDLE  ALT=\"+5+%2B+10%2F3+=+15%2F3+%2B+10%2F3+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+t%5B1%5D+%2B+t%5B2%5D+=+25%2F3+ ALIGN=MIDDLE  ALT=\"+t%5B1%5D+%2B+t%5B2%5D+=+25%2F3+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "-------------------<BR>\n" );
document.write( "The average speed is:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+200+%2F+%28+25%2F3+%29+ ALIGN=MIDDLE  ALT=\"+200+%2F+%28+25%2F3+%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+200%2A%283%2F25%29+=+600%2F25+ ALIGN=MIDDLE  ALT=\"+200%2A%283%2F25%29+=+600%2F25+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+24+ ALIGN=MIDDLE  ALT=\"+24+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "The average speed is 24 km/hr\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );