document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=459887>Question 459887</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A train covers a distance in 50 mins,if it runs at at the speed of 36km/hour on the avarage.The speed at which the trin must run into reduce the time of journey to 30 mins,will be?<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #315453 by </B><A HREF=/tutors/aboutme.mpl?userid=ankor@dixie-net.com><B>ankor@dixie-net.com(22740)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ankor@dixie-net.com><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=ankor@dixie-net.com><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=315453\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A train covers a distance in 50 mins, if it runs at at the speed of 36km/hour on the average.<BR>\n" );
document.write( "The speed at which the train must run into, reduce the time of journey to 30 mins, will be?<BR>\n" );
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document.write( "Let s = speed required to reduce speed to 30 min<BR>\n" );
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document.write( "Time varies inversely to speed, there for<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=30%2F50 ALIGN=MIDDLE  ALT=\"30%2F50\"   DISABLED_style= \"max-width:90%; height:auto;\" > = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=36%2Fx ALIGN=MIDDLE  ALT=\"36%2Fx\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Cross multiply<BR>\n" );
document.write( "30x = 50*36<BR>\n" );
document.write( "30x = 1800<BR>\n" );
document.write( "x = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=1800%2F30 ALIGN=MIDDLE  ALT=\"1800%2F30\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "x = 60 mph to reduce the time to 30 min<BR>\n" );
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document.write( "Check this out using the actual distance<BR>\n" );
document.write( "dist = 36*<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=50%2F60 ALIGN=MIDDLE  ALT=\"50%2F60\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "dist = 30 mi<BR>\n" );
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document.write( "Time going 60 mph: t = 30/60 = .5 hr which is 30 min </SPAN>\n" );
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