document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=990559>Question 990559</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A train covers a distance of 720km at a speed of x km/h.  On the return trip it travels at an average speed of y km/h and completes the whole journey in an hour less.  If the speed during the reurn journey was 10km /h more, what were the speeds in minutes/sec. </SPAN>\n" );
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document.write( "Minutes per second is not a unit of speed.<BR>\n" );
document.write( "It is a number, though: <BR>\n" );
document.write( "There are 0.0167 minutes/sec.  </SPAN>\n" );
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