GRE数学算数类重点试题附答案

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　　1.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

　　2.In how many of the integers between 1 and 100 does the digit 5 occur exactly once?

　　A.10

　　B.18

　　C.19

　　D.20

　　E.21

　　答案：B

　　3.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

　　D.160

　　E.200

　　答案：C

　　4.If the sum of five consecutive even integers is 70, what is the value of the GREatest of the five integers.

　　A.12

　　B.14

　　C.18

　　D.20

　　E.22

　　答案：C

　　5.The sum of the first 50 positive integers is 1275. What is the sum of the integers from 51 to 100, inclusive?

　　A.2525

　　B.2550

　　C.325

　　D.3775

　　E.5050

　　答案：D

　　6.The numbers in a table are arranged in 10 rows and 4 columns such that one number is placed at the intersection of each row and column. How many numbers are contained in the table、

　　A.14

　　B.40

　　C.400

　　D.104

　　E.410

　　答案：B

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