回複：回複：I'm careless,410 not 411,but the inequolity is good.we can

來源: jinjing 於 2010-06-23 09:00:17 [檔案] [舊帖] [給我悄悄話] 閱讀數 : (166 bytes)

回答: I'm careless,410 not 411,but the inequolity is good.we can very 由 jinjing 於 2010-06-22 20:29:24

Nonsense,I'm not right ,I have to say something.if the question has be changed to at least 4 questions, how to do?
Using the inequolity ,we get x=(410-300)/2=55.

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• 回複：回複：回複：I'm careless,410 not 411,but the inequolity is good.we -commentate- ♂ (94 bytes) () 06/24/2010 postreply 10:11:47

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