题库 | 考满分，百万出国党的口碑之选。

序号	题目内容
121	If n and s are each 2-digit positive integers, is n greater than s ? (1) The units digit of n is greater than the units digit of s. (2) The tens digit of n is greater than the tens digit of s.
122	If n is a positive integer and r is the remainder when (n – 1)(n + 1) is divided by 24, what is the value of r?(1) 2 is not a factor of n.(2) 3 is not a factor of n.
123	When positive integer n is divided by 3, the remainder is 2; and when positive integer t is divided by 5, the remainder is 3. What is the remainder when the product nt is divided by 15 ?(1) n - 2 is divisible by 5. (2) t is divisible by 3.
124	A certain motel has a total of 540 units, each of which has a 1-person, 2-person, or 4-person capacity. How many people stayed in the motel's 4-person units yesterday?(1) At this motel, 1/3 of the units are 4-person units.(2) Yesterday, 80 percent of the 4-person units in the motel were filled to capacity, and the rest of the 4-person units were empty.
125	If @ denotes one of two arithmetic operations, addition or multiplication, and if k is an integer, what is the value of 3 @ k ? (1) 2 @ k = 3(2) 1 @ 0 = k
126	If r and t are positive integers, is rt even?(1) r + t is odd.(2) r^t is odd.
127	If 2/5 of the students at College C are business majors, what is the number of female students at College C ?(1) 2/5 of the male students at College C are business majors.(2) 200 of the female students at College C are business majors.
128	Is $$y<{(x+z)\over2}$$ ?(1) y - x < z - y(2) $$z - y <{ (z-x)\over2}$$
129	If t is a positive integer and r is the remainder when $$t^2 + 5t + 6$$ is divided by 7, what is the value of r ?(1) When t is divided by 7, the remainder is 6.(2) When $$t^2$$ is divided by 7, the remainder is 1.
130	Set S consists of 20 different positive integers. How many of the integers in S are odd?(1) 10 of the integers in S are even. (2) 10 of the integers in S are multiples of 4.
131	If w + x < 0, is w - y > 0 ? (1) x + y < 0 (2) y < x < w
132	If the drama club and music club are combined, what percent of the combined membership will be male?(1) Of the 16 members of the drama club, 15 are male. (2) Of the 20 members of the music club, 10 are male.
133	What is the average (arithmetic mean) height of the n people in a certain group?(1) The average height of the $$\frac{n}{3}$$ tallest people n the group is 6 feet $$2\over{\frac{1}{2}}$$ inches, and the average height of the rest of the people n the group is 5 feet 10 inches.(2) The sum of the heights of the n people is 178 feet 9 inches.
134	If m and n are integers, is m odd?(1) n + m is odd.(2) n + m = n^2 + 5.
135	How many more first-time jobless claims were filed in week P than in week T ?(1) For weeks P, Q, R, and S, the average (arithmetic mean) number of first-time jobless claims filed was 388,250. (2) For weeks Q, R, S, and T, the average (arithmetic mean) number of first-time jobless claims filed was 383,000.
136	x, 3, 1, 12, 8 If x is an integer, is the median of the 5 numbers shown greater than the average (arithmetic mean) of the 5 numbers?(1) x > 6(2) x is greater than the median of the 5 numbers.
137	If x and y are positive integers, is xy a multiple of 8 ? (1) The greatest common divisor of x and y is 10. (2) The least common multiple of x and y is 100.
138	If zy < xy < 0, is \|x - z \| + \|x \| = \|z \| ?(1) z < x (2) y > 0
139	If machine J, working alone at its constant rate, takes 2 minutes to wrap 60 pieces of candy, how many minutes does it take machine K, working alone at its constant rate, to wrap 120 pieces of candy? (1) Machine K, working alone at its constant rate, takes more than 5 minutes to wrap 60 pieces of candy. (2) Machines J and K, working together at their respective constant rates, take 1 minute and 30 seconds to wrap 60 pieces of candy.
140	A manufacturer produced x percent more video cameras in 1994 than in 1993 and y percent more video cameras in 1995 than in 1994. If the manufacturer produced 1,000 video cameras in 1993, how many video cameras did the manufacturer produce in 1995 ?(1) xy = 20(2) x + y + xy/100 = 9.2

序号

题目内容

121

If n and s are each 2-digit positive integers, is n greater than s ? (1) The units digit of n is greater than the units digit of s. (2) The tens digit of n is greater than the tens digit of s.

122

If n is a positive integer and r is the remainder when (n – 1)(n + 1) is divided by 24, what is the value of r?(1) 2 is not a factor of n.(2) 3 is not a factor of n.

123

When positive integer n is divided by 3, the remainder is 2; and when positive integer t is divided by 5, the remainder is 3. What is the remainder when the product nt is divided by 15 ?(1) n - 2 is divisible by 5. (2) t is divisible by 3.

124

A certain motel has a total of 540 units, each of which has a 1-person, 2-person, or 4-person capacity. How many people stayed in the motel's 4-person units yesterday?(1) At this motel, 1/3 of the units are 4-person units.(2) Yesterday, 80 percent of the 4-person units in the motel were filled to capacity, and the rest of the 4-person units were empty.

125

If @ denotes one of two arithmetic operations, addition or multiplication, and if k is an integer, what is the value of 3 @ k ? (1) 2 @ k = 3(2) 1 @ 0 = k