document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=329369>Question 329369</A>: <I><SPAN STYLE=\"word-break: break-all;\"> train A and B are traveling in the same direction on parallel tracks. Train A IS TRAVELING 60 MILES PER HOUR AND TRAIN B IS TRAVELING AT 70 MILES PER HOUR. TRAIN A PASSES A STATION AT 4:10 A.M. IF TRAIN B PASSES THE SAME STATION AT 4:22 A.M. AT WHAT TIME WILL TRAIN B CATCH UP WITH TRAIN A? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #236102 by </B><A HREF=/tutors/aboutme.mpl?userid=mananth><B>mananth(16946)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=mananth><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=mananth><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=236102\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> there are two methods of working<BR>\n" );
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document.write( "speed of train A = 60 mph<BR>\n" );
document.write( "speed of train B = 70 mph<BR>\n" );
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document.write( "train B passes 12 minutes later than Train A<BR>\n" );
document.write( "so Train A has traveled 12/60*60 miles = 12 miles in 12 minutes.<BR>\n" );
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document.write( "Let train B catch up with train A after x miles<BR>\n" );
document.write( "time taken = x/70 <BR>\n" );
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document.write( "meanwhile train A travels x-12/60 <BR>\n" );
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document.write( "(x-12)/60 = x/70<BR>\n" );
document.write( "70(x-12)=60x<BR>\n" );
document.write( "70x-840=60x<BR>\n" );
document.write( "70x-60x=840<BR>\n" );
document.write( "10x=840<BR>\n" );
document.write( "x= 84 miles<BR>\n" );
document.write( "speed of train B = 70 mph<BR>\n" );
document.write( "time = 84/70<BR>\n" );
document.write( "=1.2 hours OR 72 minutes<BR>\n" );
document.write( "Train B will catch up after 72 minutes at 5.34 pm<BR>\n" );
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document.write( "train B covers 10 miles extra per hour.<BR>\n" );
document.write( "train b has traveled 12 miles <BR>\n" );
document.write( "to catch up it will take 12/10 hours = 1.2 hours = 72 minutes. ( so simple) </SPAN>\n" );
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