document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1130406>Question 1130406</A>: <I><SPAN STYLE=\"word-break: break-all;\"> a car travels 272km at an average speed of 32km/h. on the return journey the average speed is increased to 48km/h. calculate the average speed over the whole journey<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 #747061 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=747061\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> a car travels 272km at an average speed of 32km/h. on the return journey the average speed is increased to 48km/h. calculate the average speed over the whole journey<BR>\n" );
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document.write( "The total distance is 544 km.<BR>\n" );
document.write( "You can find the 2 times, going and returning.<BR>\n" );
document.write( "Then find km/hr by dividing the kms by the hours.<BR>\n" );
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document.write( "Or use:<BR>\n" );
document.write( "Avg speed = 2*32*48/(32+48)<BR>\n" );
document.write( "Notice that the distance is not relevant if they are equal going and returning.<BR>\n" );
document.write( "Also notice it's not the average of 32 & 48 because more time is spent at 32 km/hr. </SPAN>\n" );
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