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I have a problem

98,652,7032010-02-27 12:10:09 +0000 #1
a school athletic meet in the 400-meter circular track on the 1,000-meter race, A, B and two players start at the same time, the B-speed over a speed, in the first 15 minutes A to accelerate, in the first 18 minutes when a catch up with B and began to more than B, in the first 23 minutes, the A again to catch up with B, in the first 23 minutes and 50 seconds, the A to reach the terminal, then the B finish the course of time, when used in a few minutes?
liufangbo0072010-02-27 12:19:44 +0000 #2
What ah? 1,000 m run 23 minutes and 50 seconds to go quickly this time has also taken two years to the ah



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