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Jame's grade point average puts him in the top third of the graduating class of college A. Nestor is in the top tenth of the same class. Elizabeth has the same grade point average as Nestor. Nancy has a lower grade point average than Elizabeth. If the information above is true, which of the following must also be true? A. James has a higher grade point average than Elizabeth. James is the first three members of the class, Elizabeth is 10% of the class. As we don't know how many people in the 10% of the class (it depends on how large is the class), we can't compare three with 10%. so this answer is wrong. B. James has a higher grade point average than Nancy. Same as above, as we don't know 10% is how many people, so can't determine whose average grade is higher. For example, 15 people in the class, 10% is 1.5. Nacy is lower than 10%, but still can be No. 2 of the class. She still has the chance to have higher average grade than James. C. Nestor has a higher grade point average than Nancy. This is true. It's given by the question. A>C, B=A, so B>C. D. Elizabeth and Nancy each have a higher grade point average than James. E. Nestor and James each have a higher grade point average than Nancy. D, E explanation is as same as choice A and B That's my understanding. If anything wrong, please don't hesitate to correct me.  | 
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发表于 2004-5-5 18:29:00
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