document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=384400>Question 384400</A>: <I><SPAN STYLE=\"word-break: break-all;\"> a man divide his journey in his three equals part and travells in each of the part with speed of 6o km /hour , 30 km/hour and 10 km/hour .what is the avg speed for total travells? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #272158 by </B><A HREF=/tutors/aboutme.mpl?userid=Alan3354><B>Alan3354(69443)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Alan3354><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=Alan3354><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=272158\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> a man divide his journey in his three equals part and travells in each of the part with speed of 6o km /hour , 30 km/hour and 10 km/hour .what is the avg speed for total travells?<BR>\n" );
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document.write( "total distance = 3d, each section = d<BR>\n" );
document.write( "d = rt<BR>\n" );
document.write( "t = d/r<BR>\n" );
document.write( "t = d/60 + d/30 + d/10 = (18/120)*d = total time for 3d<BR>\n" );
document.write( "r = (120/18)*3<BR>\n" );
document.write( "r =~ 20 km/hr<BR>\n" );
document.write( " </SPAN>\n" );
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