document.write( "Question 1123307: Every hour on the hour, beginning at midnight, a mail truck leaves Winnipeg for Regina, and also a mail truck leaves Regina to Winnipeg. The distance between Winnipeg and Regina is 561km, and every truck averages 80km/h. The number of mail trucks that a mail truck leaving from Winnipeg at 5 a.m. will meet on its trip to Regina is... \n" ); document.write( "

Algebra.Com's Answer #739615 by ikleyn(52787) $\"\"$ $\"About$

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document.write( "1.  The time for each truck to cover 561 km is slightly more than  = 7 hours. I will refer to this duration as 7+ hours.\r\n" );
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document.write( "2.  When the truck \"T\" is going to start at 5:00 am from Winnipeg, exactly 7 trucks are just on the way from Regina to Winnipeg, \r\n" );
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document.write( "    without counting the truck which will start at 5:00 am from Regina.\r\n" );
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document.write( "    At 5:00 am, these 7 trucks are at the distance 80, 160, 240, 320, 400, 480 and 560 kilometers from Regina.\r\n" );
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document.write( "    Our truck \"T\" will meet all these 7 trucks.\r\n" );
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document.write( "3.  In addition to it, on the way from W to R our truck \"T\" will meet all the trucks that will leave Regina at 5:00 and \r\n" );
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document.write( "    during 7+ hours after that,  i.e.  at 5:00 am, 6:00 am, 7:00 am, 8:00 am, 9:00 am, 10:00 am, 11:00 am, and at noon. \r\n" );
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document.write( "    There are 8 trucks in this list.\r\n" );
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document.write( "4.  In all, the truck \"T\" will meet  7 + 8 trucks = 15 trucks.\r\n" );
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document.write( "Answer.  On the way from W to R each mail truck will meet 15 other mail trucks .\r\n" );
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