document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=290434>Question 290434</A>: <I><SPAN STYLE=\"word-break: break-all;\">  A train moving 50 miles per hour meets and passes a train moving 50 miles per hour in the opposite direction. A passenger in the first train sees the second train pass in 4 seconds. How long is the second train?\r<BR>\n" );
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document.write( "Give the exact answer in the form of a fraction. \r<BR>\n" );
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document.write( "_____ of a mile long\r<BR>\n" );
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document.write( "thanks for the help </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #210168 by </B><A HREF=/tutors/aboutme.mpl?userid=toidayma><B>toidayma(44)</B></A><img src=\"/images/stars/stars-07.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=toidayma><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=toidayma><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=210168\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Since the two trains are moving in opposite directions, the passenger on a train will see the other train moving at the speed of (sum of the two trains' speed) or 50 + 50 = 100(mph). Since he sees the other train passing in 4 seconds, which means that in 4 seconds or 4/3600 of an hour, the second train moves for a distance of 100* 4/3600 (mile) or 1/9 mile.<BR>\n" );
document.write( "So 1/9 is what you need to fill in the blank. </SPAN>\n" );
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