出國留學網GRE考試欄目為大家提供 GRE數學測試題及參考答案二 ,數試題希望可以幫助到各位考生!
1. 符合 X^2+Y^2 =100的學測整數解共有多少對?
2. Right triangle PQR is to be constructed in the xy-plane so that the right angle is at P and PR is parrallel to the x-axis. The x-and y-coordinates of P,Q,and Rare to be integers that satisfy the inequalities -4 =x =5,6 =y =16,how many different triangles with these properties could be constructed?
(A) 110
(B) 1100
(C) 9900
(D) 10000
(E) 12100
3. A box contains 100 balls, numbered from 1 to 100. If three balls are selected at random and with replacement from the box,what is the probability that the sum of the three numbers on the balls selected from the box will be odd?
(A) 1/4
(B) 3/8
(C) 1/2
(D) 5/8
(E) 3/4
4. (0-9) 要組成三位電話號碼,第一位不能是0或1,三位數中相鄰兩位不能為同一數. (e.g. 227 not acceptable, but 272 acceptable),求可以組成多少個這樣的電話號碼?
5. 從1,2,3,4,5,6,7,8,9中選出三個數字組成一個三位數,這個三位數的digits中有兩個相同,另一個digit與其它兩個都不同,問共有多少個這樣的三位數?
(A) 72
(B) 144
(C) 180
(D) 216
(E) 54