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Both B ring in the 400-meter runway to practice problem-solving long-distance running ..... seek mor

OveGeng2010-04-03 16:11:07 +0000 #1
B duo in the 400-meter circular track to practice long-distance race, with the same time and place to start, a The speed is 5 meters a second, the speed of B is 6 meters a second, after a laps, B can be more than a lap? Solution to this problem I thank you all! ! ! ! ! ! ! !
God has questions2010-04-03 16:18:54 +0000 #2
A. B can run 5 laps over a lap. That is 400 meters. .

This is your job right. Can only suggest you so much. . Good students should make their own
. B prompted more than 1 meter a second Bi Jia. 400 meters more than the number of seconds Bijia?



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