gre考試數學考試題及答案
number of different prime factors of 48
The number of different prime factors of 72
答案:C
number of different positive divisors of 12
The number of different positive divisors of 50
答案:C
number that is as much greater than 63 as it is less than 101
84
答案:B
4. A K-number is a positive integer with the special property that 3 times its units' digit is equal to 2 times its tens' digit.
The number of K-numbers between 10 and 99
3
答案:C
the following which is greatest?
A.1/2
B.7/15
C.49/100
D.126/250
E.1999/4000
答案:D
n=pqr, where p,q, and r are three different positive prime numbers, how many different positive divisors does n have, including 1 and n?
A.3
B.5
C.6
D.7
E.8
答案:E
7.A decrease of 1 in which of the factors above would result in the greatest decrease in the product?
A.11
B.13
C.17
D.19
E.23
答案:A
h of the following numbers is not the sum of three consecutive odd integers?
A.15
B.75
C.123
D.297
E.313
答案:E
9.A dresser drawer contains 15 garments. If 40 percent of those garments are blouses, how many are not blouses?
A.6
B.8
C.9
D.10
E.12
答案:C
a certain company purchased its computer terminals for a total of $540,400 and each of the terminals was purchased for $350, how many terminals did the company purchase?
A.1,624
B.1,544
C.1,434
D.1,384
E.1,264
答案:B
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