document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=484322>Question 484322</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A traffic light is red for 25 seconds, yellow for 5 seconds, and green for 55 seconds. What is the probability that when you reach the light, the light is not green? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #331419 by </B><A HREF=/tutors/aboutme.mpl?userid=kingme18><B>kingme18(98)</B></A><img src=\"/images/stars/stars-08.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=kingme18><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=kingme18><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=331419\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Probability = (number of events that meet the requirements) / (total number of events)\r<BR>\n" );
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document.write( "Here, the probability will be (number of seconds that meet the requirements)/(number of total seconds).  The numerator is the number of seconds that meet the requirement of NOT GREEN.  That happens when the light is red or yellow: 25 + 5 = 30 seconds.  The total number of seconds in a given rotation between green, yellow, and red is 25 + 5 + 55 = 85 seconds.  That is our total number of seconds, and will be the denominator.\r<BR>\n" );
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document.write( "So, our probability is <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=30%2F85 ALIGN=MIDDLE  ALT=\"30%2F85\"   DISABLED_style= \"max-width:90%; height:auto;\" >, which reduces to <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=6%2F17 ALIGN=MIDDLE  ALT=\"6%2F17\"   DISABLED_style= \"max-width:90%; height:auto;\" > or about 0.35. </SPAN>\n" );
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