为了便于大家更好的备考及答案解析，正在备考GRE考试的小伙伴赶快来了解一下以下题目吧，顺便检测一下自己的备考水平，一起来看一下具体的题目。
1、The system of equations has how many solutions?
3x - 6y = 9
2y - x - 3 = 0
A. None
B. Exactly 1
C. Exactly 2
D. Exactly 3
E. Infinitely many
解析：B
因为3x - 6y = 9，所以x-2y=3. 因为2y - x - 3 = 0，所以2y-x=3. 所以x-2y=2y-x. 所以x=0,y=0.只有这一种可能。所以选B.
2、What are the x-intercepts of the parabola defined by theequation y =2x2–8x –90?
Indicate allx-intercepts.
A. -10
B. -9
C. -5
D. -4
E. 4
F. 5
G. 9
H. 10
解析：C, G
因为求x轴截距，所以y=0，所以2x2–8x –90=0，所以(2x+10)(x-9)=0. 所以x= -5, 或者x=9. 所以选C,G.
3、 When thepositive integer dis divided by 12, the remainder is 5. Whatis the remainder when d is divided by 8 ?
A. 1
B.3
C.5
D.6
E.7
解析：A
正整数d被12整除后余5，因此正整数d为12*5+5=65. 所以〖65〗^2除以8等于528余1.所以选A。
4、In agroup of 60 people, the average (arithmetic mean) age of the 40 females is 60,and the average age of the 20 males is 70.
Column A ColumnB
Average age of all 60 people 65
A. Thequantity in Column A is greater
B. Thequantity in Column B is greater
C. The twoquantities are equal
D. Therelationship cannot be determined from the information given
解析：
因为一共有60个人，40个人的平均年龄是60岁，20个人的平均年龄是70岁。所以这60个人的平均年龄为(40*60+20*70)/60=63.33. 63.33<65,所以B更大。所以选B。
以上是小编为大家带来的数学部分的GRE机经及答案解析，希望能够对大家备考GRE数学有帮助。