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300 meter circular track, Xiao Qi, and Xiao-Qiang same time and start, if in the same direction and

a10334319992010-01-29 08:02:14 +0000 #1
met, if a trip is turning its back half a minute encounter, Xiaoqi and small velocities of strong How much?
candl13142010-01-29 08:17:13 +0000 #2
....... this issue to let God answer this question
cl773154602010-01-29 08:38:47 +0000 #3
set as x Xiaoqiang Xiao Qi is y

30x +30 y = 300

x + y = 10

150x-150y = N300 (N taking integer)

xy = 2N

x = 6 y = 4

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