document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=163033>Question 163033</A>: <I><SPAN STYLE=\"word-break: break-all;\"> trains A and B are traveling in the same direction on the parallel tracks. train A  is traveling 80 miles per hour and train B is traveling at 90 miles per hour. Train A passed a station at 1:20am if train B passes the same station at 1:32am At what time till 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 #120186 by </B><A HREF=/tutors/aboutme.mpl?userid=jojo14344><B>jojo14344(1513)</B></A><img src=\"/images/stars/stars-12.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=jojo14344><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/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=120186\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> </pre><font size-4><b><BR>\n" );
document.write( "When Train B passed the station At 1:32am, how far is Train A since it passed the station earlier at 1:20am? Let's see the distance of Train A:<BR>\n" );
document.write( "Remember: <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=Speed=distance%2Ftime ALIGN=MIDDLE  ALT=\"Speed=distance%2Ftime\"   DISABLED_style= \"max-width:90%; height:auto;\" >-----> working eqn<BR>\n" );
document.write( "We get via working eqn,<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=d%5BA%5D=S%5BA%5Dt%5BA%5D ALIGN=MIDDLE  ALT=\"d%5BA%5D=S%5BA%5Dt%5BA%5D\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "What will be <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=t%5BA%5D ALIGN=MIDDLE  ALT=\"t%5BA%5D\"   DISABLED_style= \"max-width:90%; height:auto;\" >?<BR>\n" );
document.write( "The difference when Train B and Train A passed the station:<BR>\n" );
document.write( "Difference: 12mins---<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=system%281%3A32%2C-1%3A20%29 ALIGN=MIDDLE  ALT=\"system%281%3A32%2C-1%3A20%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "So,<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=d%5BA%5D=80%28mi%2Fcross%28hr%29%29%2812cross%28min%29%29%281cross%28hr%29%2F60cross%28min%29%29 ALIGN=MIDDLE   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%28d%5BA%5D=16miles%29 ALIGN=MIDDLE  ALT=\"highlight%28d%5BA%5D=16miles%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >, Take note of this. This is how far Train A was when Train B passed the station by 1:32am.<BR>\n" );
document.write( ".<BR>\n" );
document.write( "In finding for <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=time ALIGN=MIDDLE  ALT=\"time\"   DISABLED_style= \"max-width:90%; height:auto;\" >, remember too <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=d%5BA%5D=d%5BB%5D ALIGN=MIDDLE  ALT=\"d%5BA%5D=d%5BB%5D\"   DISABLED_style= \"max-width:90%; height:auto;\" > since they're travelling on both directions. Via working eqn,<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=d%5BA%5D=d%5BB%5D ALIGN=MIDDLE  ALT=\"d%5BA%5D=d%5BB%5D\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=S%5BA%5D%28t%29%2Bhighlight%2816%29=S%5BB%5D%28t%29 ALIGN=MIDDLE  ALT=\"S%5BA%5D%28t%29%2Bhighlight%2816%29=S%5BB%5D%28t%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > . Take note highlighted, we need to add 16miles because Train A was already ahead that much, being ahead 12 minutes remember?<BR>\n" );
document.write( "Continuing,<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=80t%2B16=90t ALIGN=MIDDLE  ALT=\"80t%2B16=90t\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=16=90t-80t ALIGN=MIDDLE  ALT=\"16=90t-80t\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=16=10t ALIGN=MIDDLE  ALT=\"16=10t\"   DISABLED_style= \"max-width:90%; height:auto;\" > ---> <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=cross%2816%291.6%2Fcross%2810%29=cross%2810%29t%2Fcross%2810%29 ALIGN=MIDDLE  ALT=\"cross%2816%291.6%2Fcross%2810%29=cross%2810%29t%2Fcross%2810%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=t=%281.6cross%28hrs%29%29%2860min%2F1cross%28hr%29%29=96mins ALIGN=MIDDLE  ALT=\"t=%281.6cross%28hrs%29%29%2860min%2F1cross%28hr%29%29=96mins\"   DISABLED_style= \"max-width:90%; height:auto;\" > = 1hr &36mins<BR>\n" );
document.write( "Therefore,<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%283%3A08am%29 ALIGN=MIDDLE  ALT=\"highlight%283%3A08am%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > ---<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=system%281%3A32am%2C%2B1%3A36%29 ALIGN=MIDDLE  ALT=\"system%281%3A32am%2C%2B1%3A36%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "This is the time when Train A & Train B will be on the same distance.<BR>\n" );
document.write( "In doubt? Go back working eqn,<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=d%5BA%5D=80%2A1.6%2B16miles=144miles ALIGN=MIDDLE  ALT=\"d%5BA%5D=80%2A1.6%2B16miles=144miles\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=d%5BB%5D=90%2A1.6=144miles ALIGN=MIDDLE  ALT=\"d%5BB%5D=90%2A1.6=144miles\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=d%5BA%5D=d%5BB%5D ALIGN=MIDDLE  ALT=\"d%5BA%5D=d%5BB%5D\"   DISABLED_style= \"max-width:90%; height:auto;\" > right?<BR>\n" );
document.write( "Thank you,<BR>\n" );
document.write( "Jojo</pre>\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );