题目不成立.

本帖于 2008-04-09 21:14:24 时间, 由普通用户 britannica 编辑

题目不成立.
1/4 of the marbles in the box are white and the rest are red,
Mean the W:R is 1:3 which is 0.3333
After removing 24 of red, it should be greater than 0.3333, not less than 0.3333.
But 4/13=0.3077. therefore 题目不成立.

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hehe, you are confused...回复:题目不成立. -datuzi- 给 datuzi 发送悄悄话 (10 bytes) () 04/10/2008 postreply 11:11:26

回复:1/4=0.25 not 0.333 -鸡毛蒜皮- 给 鸡毛蒜皮 发送悄悄话 鸡毛蒜皮 的博客首页 (0 bytes) () 04/10/2008 postreply 13:20:29

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