gre数学 算术重点试题3.

　　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。

　　21. The sum of n different positive integers is less than 100. What is the greatest possible value of n?

　　A.10

　　B.11

　　C.12

　　D.13

　　E.14

　　答案：D

　　22.If p is a prime number greater than 11, and p is the sum of the two prime numbers x and y, then x could be which of the following?

　　A.2

　　B.5

　　C.7

　　D.9

　　E.13

　　答案:A

　　23.Of the positive integers that are multiples of 30 and are less than or equal to 360, what fraction are multiples of 12?

　　A.1/6

　　B.1/5

　　C.1/3

　　D.2/5

　　E.1/2

　　答案:E

　　24.If x, y and z are consecutive integers and x

　　(1). xyz is even.

　　(2). x+y+z is even.

　　(3).(x+y)(y+z) is odd.

　　A. None

　　B.(1) only

　　C.(2) only

　　D.(1)and(3)only

　　E. (1),(2)and(3)

　　答案：D

　　25.The product of two consecutive positive integers cannot be

　　A. a prime number

　　B. divisible by 11

　　C. a multiple of 13

　　D. an even number less than 10

　　E. a number having 4 as its units digit.

　　答案：E

　　26.When a certain number is divided by 7, the remainder is 0. If the remainder is not 0 when the number is divided by 14, then the remainder must be

　　A.1

　　B.2

　　C.4

　　D.6

　　E.7

　　答案：E

　　27.How many of the positive integers less than 25 are 2 less than an integer multiple of 4?

　　A.2

　　B.3

　　C.4

　　D.5

　　E.6

　　答案：E

　　28. If y is the average (arithmetic mean) of n consecutive positive integers, n>1,what is the sum of the greatest and least of these integers?

　　A. 2y

　　B. ny

　　C. y/2

　　D. y/n

　　E.2n/y

　　答案：A

　　29.A positive integer with exactly two different divisors greater than 1 must be

　　A. a prime

　　B. an even integer

　　C. a multiple of 3

　　D. the square of a prime

　　E. the square of an odd integer

　　答案：D

　　30.What is the least prime number greater than 83?

　　A.85

　　B.87

　　C.88

　　D.89

　　E.91

　　答案：D

　　以上每道题目都是关于gre数学考试算术的典型题目，考生可以根据题目来复习知识点，这样更有针对性。

相关链接：

gre数学 算术重点试题2

gre数学 算术重点试题1

新gre数学复习重要考点