document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1042417>Question 1042417</A>: <I><SPAN STYLE=\"word-break: break-all;\"> (i) a car leaves town A at 09 50 and travels towards town B at an average speed of 44km/h. at what time will it reach town which is 66km away?       (ii) on reaching town B, it continues its journey towards town c but reduces its speed by 7km/h. it reaches town C at 13 20. find the distance between town B and town C.    (iii) calculate the average speed for the whole journey, between town A and town C<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 #657379 by </B><A HREF=/tutors/aboutme.mpl?userid=chen.aavaz><B>chen.aavaz(62)</B></A><img src=\"/images/stars/stars-08.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=chen.aavaz><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=657379\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Time needed for the car to travel from A to B:<BR>\n" );
document.write( "t=S/V where S is the distance between the two towns and V the car speed.<BR>\n" );
document.write( "Therefore t=66/44 = 1.5h, so it reaches B 1.5 hour after 9:50, that is, 11:20.\r<BR>\n" );
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document.write( "The reduced speed after it reaches B is <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=V1%3A+%2844-7%29km%2Fh=37km%2Fh ALIGN=MIDDLE  ALT=\"V1%3A+%2844-7%29km%2Fh=37km%2Fh\"   DISABLED_style= \"max-width:90%; height:auto;\" >.<BR>\n" );
document.write( "The car reaches town C at 13:20, that is, t1=2 hours after 11:20.<BR>\n" );
document.write( "Distance S1 between B and C:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=S1=V1%2At1+=+37%2A2+km+=+74+km ALIGN=MIDDLE  ALT=\"S1=V1%2At1+=+37%2A2+km+=+74+km\"   DISABLED_style= \"max-width:90%; height:auto;\" >.\r<BR>\n" );
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document.write( "Average speed: (total distance)/(total time) = <BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%2866%2B74%29%2F%281.5%2B2%29=40km%2Fh ALIGN=MIDDLE  ALT=\"%2866%2B74%29%2F%281.5%2B2%29=40km%2Fh\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "I hope I explained it clear enough! </SPAN>\n" );
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