??

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送交者: ping_max 于 2006-09-29, 15:56:56:

回答: Assuming filling tank is instantaneous, then 6 planes are needed 由 outsider 于 2006-09-29, 15:15:55:

"At 1/6 of the circle, ..., C and D continue to fly to 1/3 of the circle, both got 2/3 tank full."

shouldn't they be more than 2/3 full at 1/3 then? sorry I don't get it



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