# 【GRE数学】代数文字题型典型题目及答案（三）

2011-05-20 19:22

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GRE数学

【 liuxue86.com - GRE数学 】

考生如果觉得复习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。下面是21-30题。

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

每到题目都是关于gre数学考试的典型题目，考生可以根据题目来复习知识点，这样更有针对性。

想了解更多GRE数学网的资讯，请访问： GRE数学

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