题库 | 考满分，百万出国党的口碑之选。

序号	题目内容
41	Last Thursday, John assembled chairs at a rate of 3 chairs per hour for part of the day and Larry assembled no chairs. Last Friday, Larry assembled chairs at a rate of 4 chairs per hour for part of the day and John assembled no chairs. If John and Larry assembled chairs for a total of 7 hours during these two days, how many chairs did John assemble last Thursday?(1) During these two days, John and Larry assembled a total of 25 chairs.(2) During these two days, Larry assembled more chairs than John did.
42	What is the value of 3n - 4?(1) 6n – 10 = 30(2)$$\frac{n}{3} = \frac{20}{9}$$
43	Circle C and line k lie in the xy-plane. If circle C is centered at the origin and has radius 1, does line k intersect circle C ?(1) The x-intercept of line k is greater than 1.(2) The slope of line k is $$-\frac{1}{10}$$.
44	How many people received a certain survey? (1) Six-tenths of those who received the survey responded. (2) Of those who received the survey, 42 responded.
45	If x and z are integers, is at least one of them even?(1)x + z is odd.(2)x - z is odd.
46	Three thousand families live in a certain town. How many families who live in the town own neither a car nor a television set? (1) Of the families who live in the town, 2,980 own a car.(2) Of the families who live in the town, 2,970 own both a car and a television set.
47	In the fraction x/y, where x and y are positive integers, what is the value of y ?(1) The least common denominator of $$\frac{x}{y}and \frac{1}{3} is 6$$.(2) x = 1.
48	There are two types of rolls on a counter, plain rolls and seeded rolls. What is the total number of rolls on the counter? (1) The ratio of the number of seeded rolls on the counter to the number of plain rolls on the counter is 1 to 5. (2) There are 16 more plain rolls than seeded rolls on the counter.
49	Is the hundredths digit of the decimal d greater than 5 ?(1) The tenths digit of 10d is 7.(2) The thousandths digit of $$\frac{d}{10}$$ is 7.
50	What is the value of 2x + 2y ? (1) 3x + 5y = 60 (2) 5x + 3y = 68
51	Whenever Martin has a restaurant bill with an amount between $10 and $99, he calculates the dollar amount of the tip as 2 times the tens digit of the amount of his bill. If the amount of Martin's most recent restaurant bill was between $10 and $99, was the tip calculated by Martin on this bill greater than 15 percent of the amount of the bill?(1)The amount of the bill was between $15 and $50.(2)The tip calculated by Martin was $8.
52	For Manufacturer M, the cost C of producing x units of its product per month is given by C = kx + t, where C is in dollars and k and t are constants. Last month, if Manufacturer M produced 1,000 units of its product and sold all the units for k + 60 dollars each, what was Manufacturer M's gross profit on the 1,000 units? (1) Last month, Manufacturer M's revenue from the sale of the 1,000 units was $150,000. (2) Manufacturer M's cost of producing 500 units in a month is $45,000 less than its cost of producing 1,000 units in a month.
53	The symbol @ represents one of the four arithmetic operations: addition, subtraction, multiplication, and division. Is (5 @ 6) @ 2 = 5 @ (6 @ 2) ? (1) 5 @ 6 = 6 @ 5 (2) 2 @ 0 = 2
54	If y is an integer and y = \|x \| + x, is y = 0 ? (1) x < 0 (2) y < 1
55	Is the positive integer n an odd integer?(1) n + 4 is a prime number.(2) n + 3 is not a prime number.
56	What is the total surface area of rectangular solid R ? (1) The surface area of one of the faces of R is 48. (2) The length of one of the edges of R is 3.
57	A certain list consists of several different integers. Is the product of all the integers in the list positive? (1) The product of the greatest and smallest of the integers in the list is positive. (2) There is an even number of integers in the list.
58	A certain store sells chairs individually or in sets of 6. The store charges less for purchasing a set of 6 chairs than for purchasing 6 chairs individually. How much does the store charge for purchasing a set of 6 chairs? (1) The charge for purchasing a set of 6 chairs is 10 percent less than the charge for purchasing the 6 chairs individually. (2) The charge for purchasing a set of 6 chairs is $20 more than the charge for purchasing 5 chairs individually.
59	If $$k \neq 0, 1, or -1$$, is $$ \frac{1}{k}$$ > 0 ?(1)$$ {1\over{(k-1)}} > 0$$(2)$$ {1\over{(k+1)}} > 0$$
60	Does the integer k have a factor p such that 1 < p < k ?(1) k > 4!(2) $$13! + 2 \le k \le 13! + 13$$

序号

题目内容

Last Thursday, John assembled chairs at a rate of 3 chairs per hour for part of the day and Larry assembled no chairs. Last Friday, Larry assembled chairs at a rate of 4 chairs per hour for part of the day and John assembled no chairs. If John and Larry assembled chairs for a total of 7 hours during these two days, how many chairs did John assemble last Thursday?(1) During these two days, John and Larry assembled a total of 25 chairs.(2) During these two days, Larry assembled more chairs than John did.

What is the value of 3n - 4?(1) 6n – 10 = 30(2)$$\frac{n}{3} = \frac{20}{9}$$

Circle C and line k lie in the xy-plane. If circle C is centered at the origin and has radius 1, does line k intersect circle C ?(1) The x-intercept of line k is greater than 1.(2) The slope of line k is $$-\frac{1}{10}$$.

How many people received a certain survey? (1) Six-tenths of those who received the survey responded. (2) Of those who received the survey, 42 responded.

If x and z are integers, is at least one of them even?(1)x + z is odd.(2)x - z is odd.

Three thousand families live in a certain town. How many families who live in the town own neither a car nor a television set? (1) Of the families who live in the town, 2,980 own a car.(2) Of the families who live in the town, 2,970 own both a car and a television set.

In the fraction x/y, where x and y are positive integers, what is the value of y ?(1) The least common denominator of $$\frac{x}{y}and \frac{1}{3} is 6$$.(2) x = 1.

There are two types of rolls on a counter, plain rolls and seeded rolls. What is the total number of rolls on the counter? (1) The ratio of the number of seeded rolls on the counter to the number of plain rolls on the counter is 1 to 5. (2) There are 16 more plain rolls than seeded rolls on the counter.

Is the hundredths digit of the decimal d greater than 5 ?(1) The tenths digit of 10d is 7.(2) The thousandths digit of $$\frac{d}{10}$$ is 7.

What is the value of 2x + 2y ? (1) 3x + 5y = 60 (2) 5x + 3y = 68