document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1136050>Question 1136050</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Traffic signals at each intersection on a main road all change on the same 2 minute cycle. A taxi driver knows that it is exactly 3.5km from one intersection to the next. Without breaking the 50km/hr speed limit, what is the highest average speed, in kilometers per hour, he can travel to get to each intersection as it just changes to green? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #753809 by </B><A HREF=/tutors/aboutme.mpl?userid=rothauserc><B>rothauserc(4718)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=rothauserc><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=rothauserc><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=753809\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> rate * time = distance<BR>\n" );
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document.write( "4/60 = 1/15 = 0.066666 is approximately 0.07 hour<BR>\n" );
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document.write( "If the car takes for 4 minutes between lights it will be in sync and<BR>\n" );
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document.write( "Note 2 minutes is too fast, 3.5/0.03 = 116.6667 km/hr<BR>\n" );
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document.write( "rate = 3.5/0.07 = 50 km/hr<BR>\n" );
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