document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=764688>Question 764688</A>: <I><SPAN STYLE=\"word-break: break-all;\"> At 2.30pm, David left Rose town for Lily town at a speed of 10km/h. At the same time, Muthu left Lily town for Rose town at a speed of 12km/h along the same road. If the distance between Rose town and Lily town was 6km, how far apart were the boys 15 minutes later?\r<BR>\n" );
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document.write( "This is what I know from the question.\r<BR>\n" );
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document.write( "David<BR>\n" );
document.write( "Speed - 10km/h<BR>\n" );
document.write( "Time - 36 minutes<BR>\n" );
document.write( "Distance - 6km\r<BR>\n" );
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document.write( "Muthu <BR>\n" );
document.write( "Speed - 12km/h<BR>\n" );
document.write( "Time - 30 minutes<BR>\n" );
document.write( "Distance - 6km </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #465615 by </B><A HREF=/tutors/aboutme.mpl?userid=ramkikk66><B>ramkikk66(644)</B></A><img src=\"/images/stars/stars-11.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ramkikk66><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=465615\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <PRE STYLE=\"white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;\">\r\n" );
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document.write( "Question:\r\n" );
document.write( "At 2.30pm, David left Rose town for Lily town at a speed of 10km/h. At the same time, Muthu left Lily town for Rose town at a speed of 12km/h along the same road. If the distance between Rose town and Lily town was 6km, how far apart were the boys 15 minutes later? \r\n" );
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document.write( "Answer:\r\n" );
document.write( "You have worked out how long it would take for each boy to reach the other town \r\n" );
document.write( "i.e. to cover the distance of 6 km. But the question only asks for how far they\r\n" );
document.write( "are apart after 15 min.\r\n" );
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document.write( "David travels 10 km/hr.\r\n" );
document.write( "So in 15 min he travels = 10*15/60 = 2.5 km\r\n" );
document.write( "Muthu travels 12 km/hr\r\n" );
document.write( "So in 15 min he travels = 12*15/60 = 3 km\r\n" );
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document.write( "Initially the boys are 6 km apart. Now since they are travelling towards each\r\n" );
document.write( "other, the distance between them has reduced by (2.5 + 3) = 5.5 km.\r\n" );
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document.write( "So at the end of 15 min, the distance between them = 6 - 5.5 = 0.5 km.\r\n" );
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document.write( "Hope you got it. Let me know if you need further explanations :)\r\n" );
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document.write( "</PRE> </SPAN>\n" );
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