回复：回复：how many left?

来源: 康MM 于 2010-01-13 08:19:10 [] [博客] [旧帖] [给我悄悄话] 阅读数 : (89 bytes)
回答: how many left? 由 fruitbasket 于 2010-01-12 16:24:18

8 is the right answer. You first make three trips of 3 miles, and then 2 trips of 5 miles

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• 回复：回复：回复：how many left? -fruitbasket- ♀ 给 fruitbasket 发送悄悄话 (27 bytes) () 01/13/2010 postreply 12:45:10

• write out how you get 8, and that would be a proof -康MM- ♀ 给 康MM 发送悄悄话 康MM 的博客首页 (0 bytes) () 01/13/2010 postreply 17:02:17

• 回复：write out how you get 8, and that would be a proof -Jinjing- ♀ 给 Jinjing 发送悄悄话 (303 bytes) () 01/13/2010 postreply 17:55:32

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