document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1121884>Question 1121884</A>: <I><SPAN STYLE=\"word-break: break-all;\"> In a journey of 1000 km a train covers the first 600 km at 60k/m per hour and the remaining distance at 40 kilometre per hour calculate the average speed of the train during the whole journey </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #737882 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=737882\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> the train covers the first 600 kilometers at 60 kilometers per hour.\r<BR>\n" );
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document.write( "the train covers the second 400 kilometers at 40 kilometers per hour.\r<BR>\n" );
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document.write( "rate * time = distance.\r<BR>\n" );
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document.write( "for the first 600 kilometers, the formula becomes 60 * time = 600\r<BR>\n" );
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document.write( "solve for time to get time = 600 / 60 = 10 hours.\r<BR>\n" );
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document.write( "for the last 400 kilometers, the formula becomes 40 * time = 400.\r<BR>\n" );
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document.write( "solve for time to get time = 400 / 40 = 10 hours.\r<BR>\n" );
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document.write( "the total time for the 1000 kilometers is 10 + 10 = 20 hours.\r<BR>\n" );
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document.write( "rate * time = distance becomes rate * 20 = 1000.\r<BR>\n" );
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document.write( "solve for rate to get rate = 1000 / 20 = 50 kilometers per hour.\r<BR>\n" );
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document.write( "the average speed of the train for the whole journey is 50 kilometers per hour.\r<BR>\n" );
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