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gre考试改革后，很多考生都觉得题难，如果觉得复习gre数学考试比较难不妨从这些题目练习开始，每篇都是按照分类给大家列举了一些典型题目，本篇主要是针对gre数学考试算术方面的典型题目及答案。 41.At College C there are from 2 to 4 introductory philosophy classes each semester, and each of these classes has from 20 to 30 students enrolled. If one semester 10 percent of the students enrolled in introductory philosophy failed, what is the greatest possible number who failed? A.12 B.10 C.8 D.6 E.3 答案：A 42.In each of the years 1983 and 1984, the total number of automobiles sold in the United States was 1.2 million more than in the previous year. Percent increase in the number of automobiles sold in 1983 over 1982 Percent increase in the number of automobiles sold in 1984 over 1983 答案：A 43.A school district has 1989 computers, which is approximately one computer for every 68.6 students. Of the following, which is the closest approximation, in thousands, of the number of students in the school district? A.30 B.120 C.140 | 
