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7#

楼主 |
发表于 2012-10-6 01:27:46
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how i thought about it was:
A finishes the race, hence ran 2*直线段 + (1/2)内圈
B did not finish the race, so B would have ran 1*直线段 + (rest), if B had finished the second 直线段, doesn't that mean that B had finished the race?? (which, I understand, does not make sense)
PLEASE CORRECT ME! thank you for your help.
Sorry for typing in English. It is much faster with a school computer. |
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