document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=677239>Question 677239</A>: <I><SPAN STYLE=\"word-break: break-all;\"> a motorist travels for 1hr at an average speed of 72km/h and then for 2hrs at a average speed of 90km/h calculate his average speed for 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 #420798 by </B><A HREF=/tutors/aboutme.mpl?userid=checkley79><B>checkley79(3341)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=checkley79><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/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=420798\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> D=RT<BR>\n" );
document.write( "D=72*1=72 KM.<BR>\n" );
document.write( "D=90*2=180 KM.<BR>\n" );
document.write( "72+180=252 TOTAL KM.<BR>\n" );
document.write( "1+2=3 TOTAL HOURS.<BR>\n" );
document.write( "252=R*3<BR>\n" );
document.write( "R=252/3<BR>\n" );
document.write( "R=84 KM. IS THE AVERAGE SPEED. </SPAN>\n" );
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