题库 | 考满分，百万出国党的口碑之选。

序号	题目内容
141	Of the 20 people who each purchased 2 tickets to a concert, some used both tickets, some used only 1 ticket, and some used neither ticket. What percent of the tickets that were purchased by the 20 people were used by those people? (1) Of the 20 people, 10 used only 1 ticket.(2) Of the 20 people, 4 used neither ticket.
142	At a certain stand, all soft drinks cost the same and all sandwiches cost the same. How much does 1 sandwich cost at the stand? (1) At the stand, 1 sandwich and 2 soft drinks cost a total of $3.15.(2) At the stand, 3 sandwiches and 1 soft drink cost a total of $5.70.
143	If K is a positive three-digit integer, what is the hundreds digit of K ? (1) The hundreds digit of K + 150 is 4. (2) The tens digit of K + 25 is 7.
144	In the xy-plane, point P has coordinates (a, b) and point Q has coordinates (c, d). What is the distance between P and Q ?(1) b - d = 4(2) a - c = 3
145	If a, b, and c are positive integers, is b between a and c ?(1) b is 3 greater than a, and b is 5 less than c. (2) c is 5 greater than b, and c is 8 greater than a.
146	At a certain refreshment stand, all hot dogs have the same price and all sodas have the same price. What is the total price of 3 hot dogs and 2 sodas at the refreshment stand?(1) The total price of 5 sodas at the stand is less than the total price of 2 hot dogs. (2) The total price of 9 hot dogs and 6 sodas at the stand is $21.
147	If a certain company purchased computers at $2,000 each and printers at $300 each, how many computers did it purchase? (1) More than three printers were purchased. (2) The total amount for the purchase of the computers and the printers was $15,000.
148	If x = 3 and y = 6, is y > nx + k ? (1) n = 5 (2) k = -10
149	Does x + c = y + c ? (1) x = y (2) x = c
150	If n is an integer between 3 and 9, what is the value of n ?(1) On the number line, the distance from 3 to n is 2/3 of the distance from 3 to 9.(2) On the number line, n is 10 units to the right of -3
151	Is the average (arithmetic mean) of 5 different positive integers at least 30 ?(1) Each of the integers is a multiple of 10. (2) The sum of the 5 integers is 160.
152	A certain jar contains only b black marbles, w white marbles, and r red marbles. If one marble is to be chosen at random from the jar, is the probability that the marble chosen will be red greater than the probability that the marble chosen will be white?(1) $${{r}\over{b+w}}>{{w}\over{b+r}}$$(2) b – w > r
153	On his trip from Alba to Benton, Julio drove the first x miles at an average rate of 50 miles per hour and the remaining distance at an average rate of 60 miles per hour. How long did it take Julio to drive the first x miles?(1) On this trip, Julio drove for a total of 10 hours and drove a total of 530 miles.(2) On this trip, it took Julio 4 more hours to drive the first x miles than to drive the remaining distance.
154	To install cable television in a home, a certain cable company charges a basic fee of $30 plus a fee of $20 for each cable outlet installed in the home. How much did the cable company charge the Horace family for installing cable television in their home?(1) The cable company installed three cable outlets in the Horace family home.(2) The amount that the cable company charged the Horace family for installing cable television in their home was equivalent to an average (arithmetic mean) charge of $30 per cable outlet installed.
155	If 500 is the multiple of 100 that is closest to x and 400 is the multiple of 100 that is closest to y, which multiple of 100 is closest to x + y ?(1) x < 500 (2) y < 400
156	Each of the numbers w, x, y, and z is equal to either 0 or 1. What is the value of w + x + y + z ?(1) $$\frac{w}{2} + \frac{x}{4} + \frac{y}{8} + \frac{z}{16} = \frac{11}{16}$$(2) $$\frac{w}{3} + \frac{x}{9} + \frac{y}{27} + \frac{z}{81} = \frac{31}{81}$$
157	A certain list consists of five different integers. Is the average (arithmetic mean) of the two greatest integers in the list greater than 70 ? (1) The median of the integers in the list is 70.(2) The average of the integers in the list is 70.
158	A store purchased 20 coats that each cost an equal amount and then sold each of the 20 coats at an equal price. What was the store's gross profit on the 20 coats? (1) If the selling price per coat had been twice as much, the store's gross profit on the 20 coats would have been $2,400. (2) If the selling price per coat had been $2 more, the store's gross profit on the 20 coats would have been $440.
159	Beth and Jim each received a salary increase. If Jim's salary was increased by the same percent as Beth's salary, did Bethreceive a greater dollar increase in salary than Jim?(1) Before the increases, Jim’s salary was greater than $25,000.(2) Before the increases, Jim’s salary was 4/5 of Beth’s salary.
160	All the clients that Company X had at the beginning of last year remained with the company for the whole year. If Company X acquired new clients during the year, what was the ratio of the number of clients that Company X had at the end of last year to the number of clients that it had at the beginning of last year? (1) The ratio of the number of clients that Company X had at the beginning of last year to the number of new clients that it acquired during the year was 12 to 1. (2) Company X had 144 clients at the beginning of last year.

序号

题目内容

141

Of the 20 people who each purchased 2 tickets to a concert, some used both tickets, some used only 1 ticket, and some used neither ticket. What percent of the tickets that were purchased by the 20 people were used by those people? (1) Of the 20 people, 10 used only 1 ticket.(2) Of the 20 people, 4 used neither ticket.

142

At a certain stand, all soft drinks cost the same and all sandwiches cost the same. How much does 1 sandwich cost at the stand? (1) At the stand, 1 sandwich and 2 soft drinks cost a total of $3.15.(2) At the stand, 3 sandwiches and 1 soft drink cost a total of $5.70.

143

If K is a positive three-digit integer, what is the hundreds digit of K ? (1) The hundreds digit of K + 150 is 4. (2) The tens digit of K + 25 is 7.

144

In the xy-plane, point P has coordinates (a, b) and point Q has coordinates (c, d). What is the distance between P and Q ?(1) b - d = 4(2) a - c = 3

145

If a, b, and c are positive integers, is b between a and c ?(1) b is 3 greater than a, and b is 5 less than c. (2) c is 5 greater than b, and c is 8 greater than a.