作者minirainbow (＊_＊ )
看板GMAT
标题[机经] Math jj 203
时间Thu Oct 30 12:56:22 2008
203. 78% student was graduated from the school in 1980.
89% students graduated from the school in 1980.
问满足两个条件的学生比例。（为nonpanicfan版本的第13题）
这种题目的经典解释是：肉包子中a%是有摺的，有摺包子中b%是肉包子，
实际上隐含的关系就是肉包子有摺的=有摺的肉包子，都是同一批包子
（1980年毕业生的数目是一样的）..忘记是哪位NN在哪个月提出来的..拜服一下
变体题目（或者说本身就是原题）：
The sentence "students was graduated from high school"
is accepted by 89% of the students, and the sentence
''students graduated from high school '' is accepted
by 78% of the students. 问两个同时被accept的概率。70%
这题该怎麽解？...
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1F：→ dandanny:这题很之前有讨论过了 可以找一下 10/30 12:57
2F：→ dandanny:范围是66%-78% 就看你的选项哪个是符合就选 10/30 12:57
3F：→ minirainbow:谢谢 有我发现我疏忽掉了前面有了 谢谢 10/30 13:08