还要在GRE考试中一举多得高分的考生，在复习中就避免不了使用机经来帮助考生增加对GRE考试的了解，那么今天小编为考生友情分享2015年8月份GRE考试数学预测机经，让你完美备战，希望对考生有所帮助。
1.
The probability that event A will occur is 0.5
The probability that event B will occur is 0.4
The probability that event A or B will occur is 0.8
Column A Column B
The probability that A and B both 0.1
A. The quantity in Column A is greater
B. The quantity in Column B is greater
C. The two quantities are equal
D. The relationship cannot be determined from the information given
参考答案：C。通过题目条件可以得出AB 同时发生的概率是0.1.
2. Yesterday, at a certain school, the ratio of boys to girls was 1 to 3. Today, an equal number of boys and girls joined the school. The number that joined was greater than zero and no students left.
Column A Column B
Ratio of boys to girls now 1/3
A. The quantity in Column A is greater
B. The quantity in Column B is greater
C. The two quantities are equal
D. The relationship cannot be determined from the information given
参考答案：A. (1+x)/(3+x) > 1/3，因为x>0
3. x is a positive integer less than 100. When x is divided by 5, the remainder is 4, andwhen x is divided by 23, the remainder is 7.
What is the value of x?
参考答案：99。X 要满足两个条件，x-4 能被5 整除，x-7 能被23 整除。
4. If k is an integer and 121 < k2 < 225, then k can h ave at most how many values?
A. 3
B. 4
C. 5
D. 6
E. 7
参考答案：D. k 可以是12,13,14,-12,-13,-14.
5. When positive integer k is divided by 5, the remainder is 2. When k is divided by 6,
the remainder is 5. If k is less than 40, what is the remainder when k is divided by 7?
A. 1
B. 2
C. 3
D. 4
E. 5
参考答案：C. 通过条件可以得出k 为17，故17/7,余3
6. In the quadrilateral shown here, a+b+c+d=
参考答案：1080. 四边形内角和为360. 故360*4-360=1080
ABCE is a square, and BCDE is a parallelogram.
Quantity A: The area of square ABCE
Quantity B: The area of parallelogram BCDE
A. Quantity A is greater.
B. Quantity B is greater.
C. The two quantities are equal
D. The relationship cannot be determined from the information given.
参考答案：C. 正方形的面积是长乘以宽，平行四边形的面积是长乘以高。一样
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