6.28GRE數學機經真題回顧

　　因為近期GRE數學難度進步，很多半學不錯verbal也不錯的同窗都紛紜跪在了160鄰近。以是考生必定不克不及放松對gre數學的溫習，下面給考生分享的是2015年6月28日GRE數學真題，考生們趕快去看看試題的難度吧!

　　1、If the sum of three positive integers a, b, and c is 11, which TWO of following are sufficient to determine the value of a, b, and c?

　　None of a, b, and c is 1.

　　None of a, b, and c is 4.

　　None of a, b, and c is 7.

　　None of a, b, and c is 8.

　　2、In a certain sequence of 90, 105, x, 120, and 125, both the mean and the median are equal to x. What is the value of x?

　　3、Caitlin’s phone number has ten digits. If Kevin only remember first eight digits, what is the most times that Kevin has to try in order to call Caitlin if he does not dial repetition number.

　　4、Dr. Mosher call the roll ten days in row. If Candy attended 8 times, Sam attended 7 times, and Amy attended 6 times, and if they show in class simultaneously in only one day, how many days in which exactly two of them attended.

　　5、In a survey of preference of pets, 40% of the respondents prefer dogs, and 30% of respondents prefer cats. If 40% of the respondents prefer neither dog nor cat, what percent of respondents prefer both dog and cat?

　　6、What is the greatest prime factor of 79^2 - 50^2

　　7、The equation x^2 + kx + 1 = 0 has two solution t and r, and t < r. k is a constant.

　　Quantity A:t

　　Quantity B:1

　　8、Three machines, each working at the same constant rate, together can complete a certain job in 9 hours. How many hours needed for one machine to complete the job?

　　9、Which of following inequalities are individually sufficient to determine 0 < x < 1?

　　A. x^2 < 1

　　B. x^2 < x

　　C. x^2 > x^4

　　D. x^5 < x^3

　　10、Ashim purchases some goods whose listed price is $200 in Wal-Mart

　　Quantity A: Discounted 15%, and then $20 off

　　Quantity B: $20 off and then discounted 15%

　　11、For all integers between 100 and 159, what is the ratio of the integers whose tens digit is no more than 3, and units digit is no more than 4?

　　12、In the figure above, a is parallel with b, and c is parallel with d

　　Quantity A:X

　　Quantity B:Y

　　13 Each of 10 balls has an integer 0 to 9, inclusive, painted on the side. Shane randomly pick one each time without replacement.

　　Quantity A: The probability that 5 is picked at first time

　　Quantity B: The probability that 5 is picked at second time

　　以上便是2015年6月28日GRE數學真題的部門內容，願望考生能好好的應用，GRE數學高分的獲得除請求考生有踏實的基本，gre數學真題的演習一樣是必弗成少的，願望考生能懂得，祝考生在接下來的gre測驗中有精彩的施展。