gre數學考試關於算術的重點試題(2)

　　考生如果覺得複習gre數學考試比較難不妨從這些題目練習開始，每篇都是按照分類給大家列舉了一些典型題目，本篇主要是針對gre數學考試算術方面的典型題目及答案。下面是11-20題。
　　11. Of the following, which is most nearly equal to 2/3?
　　A.3/4
　　B.5/6
　　C.7/9
　　D.11/15
　　E.15/21
　　答案：E
　　12. One month Mary used 1/6 of her monthly salary for a car payment and 1/4 more than the car payment for rent. What fraction of her monthly salary did Mary use that month for the car payment and rent combined?
　　A.5/24
　　B.3/8
　　C.5/12
　　D.1/2
　　E.7/12
　　答案：B
　　13.For which of the following pairs of integers is the least common multiple of the integers minus their greatest common divisor the greatest?
　　A.3,12
　　B.5,6
　　C.10,20
　　D.11,12
　　E.15,30
　　答案：D
　　14. X percent of 24 is 12
　　x
　　50
　　答案：C
　　15.When x+2 is divided by 5 the remainder is 3
　　The remainder when x is divided by 5
　　2
　　答案：B
　　16.In a list of numbers, the first number is 3, the second is 4, and each subsequent number is the sum of all the preceding numbers in the list. If the 20th number in the list is x, what is the 25th number in the list?
　　A.7x
　　B.16x
　　C.32x
　　D.35x
　　E.161x
　　答案：C
　　17.Which of the following numbers is both a factor of 48 and a multiple of 6?
　　A.2
　　B.8
　　C.12
　　D.16
　　E.18
　　答案：C
　　18.The least common denominator of 1/2,1/3,and1/4
　　15
　　答案：B
　　19.If r and s are positive integers, each greater than 1, and if 11=13, what is the least possible value of r+s?
　　A.2
　　B.11
　　C.22
　　D.24
　　E.26
　　答案：E
　　20.When integer n is divided by 9, the remainder is 2.
　　The remainder when n is divided by 3
　　2
　　答案：C
　　每到題目都是關於gre數學考試的典型題目，考生可以根據題目來複習知識點，這樣更有針對性。