document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=629120>Question 629120</A>: <I><SPAN STYLE=\"word-break: break-all;\"> a man drives for 30 minutes at a speed of 25 m/s then stops for 10 minutes and finally drives for 20 minutes at 36 m/s. Calculate (a)the total distance and (b) the average speed. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #396058 by </B><A HREF=/tutors/aboutme.mpl?userid=303795><B>303795(602)</B></A><img src=\"/images/stars/stars-11.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=303795><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=396058\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> He firstly travels for 30 mins at 25 m/s <BR>\n" );
document.write( "i.e. he travels for 30 x 60 = 1800 seconds<BR>\n" );
document.write( "The distance he travels will be 1800 x 25 =45000 m (45 km)\r<BR>\n" );
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document.write( "His second set of travelling is for 20 minutes at 36 m/s<BR>\n" );
document.write( "i.e. he travels for 20 x 60 = 1200 seconds<BR>\n" );
document.write( "The distance he travels will be 1200 x 36 = 43200 m (43.2 km)\r<BR>\n" );
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document.write( "The total distance he travels will be 45000 + 43200 = 88200 m.<BR>\n" );
document.write( "This means his average speed as the overall journey took one hour is 88.2 km/h or 88200/3600 = 24.5 m/s.<BR>\n" );
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