document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1013641>Question 1013641</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Two trains are moving in opposite directions at the speed of 50km/hr and 70km/hr. Their lengths are 150m and 100m. The time required for their crossing each other is? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #629920 by </B><A HREF=/tutors/aboutme.mpl?userid=Alan3354><B>Alan3354(69443)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Alan3354><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=Alan3354><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=629920\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Two trains are moving in opposite directions at the speed of 50km/hr and 70km/hr. Their lengths are 150m and 100m. The time required for their crossing each other is?<BR>\n" );
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document.write( "Their speeds are added when going in opposite directions = 120 km/hr<BR>\n" );
document.write( "\"crossing\" is the sum of the lengths = 250 m = 0.25 km<BR>\n" );
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document.write( "d = r*t<BR>\n" );
document.write( "t = d/r = 0.25/120 hours<BR>\n" );
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