| 题号 |
题目内容 |
平均正确率 |
操作 |
PS-5a23gk |
If [math]0.5/(1/6)=1/x[/math], what is the value of x ? |
95% |
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PS-4223hk |
If each of the 12 teams participating in a certain tournament plays exactly one game with each of the other teams, how many games will be played? |
84% |
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DS-031xhk |
What is the remainder when the two-digit, positive integer x is divided by 3 ?[br/](1)The sum of the digits of x is 5.[br/](2)The remainder when x is divided by 9 is 5. |
58% |
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DS-b51xik |
If the product of the digits of the two-digit positive integer n is 2, what is the value of n ?[br/](1)n is odd.[br/](2)n is greater than 20. |
88% |
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DS-b61xjk |
In 1993 Mr. Jacobs paid 4.8 percent of his taxable income in state taxes. In 1994 what percent of Mr. Jacobs’ taxable income did he pay in state taxes?[br/](1)In 1993 Mr. Jacobs’s taxable income wa... |
65% |
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PS-0b23ik |
What is the greatest prime factor of [math]2^100 - 2^96[/math] ? |
88% |
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DS-9b1xkk |
A school administrator will assign each student in a group of n students to one of m classrooms. If 3 ＜ m ＜ 13 ＜ n, is it possible to assign each of the n students to one of the m classrooms so ... |
47% |
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PS-7d23jk |
[img]1208.jpg[/img][br/]The figure shown above represents a modern painting that consists of four differently colored rectangles, each of which has length l and width w. If the area of the painting... |
90% |
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DS-a01xlk |
If xyz ＞ 0, is [math]xy^2z^3[/math] ＜ 0 ?[br/](1)y ＜ 0[br/](2)x ＞ 0 |
71% |
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PS-d823kk |
If the average (arithmetic mean) of positive integers x, y, and z is 10, what is the greatest possible value of z ? |
92% |
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PS-6a2kdk |
If n is positive, which of the following is equal to [math]1/(sqrt(n+1)-sqrtn)[/math] |
93% |
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DS-f51xmk |
What was the percent increase in the average (arithmetic mean) contribution per member of a certain public radio station from 1985 to 1995 ?[br/](1)Total contributions by members increased from $50... |
72% |
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PS-4f23mk |
[math]4^3+4^3+4^3+4^3[/math] = |
97% |
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PS-8123nk |
In the first week of the year, Nancy saved $1. In each of the next 51 weeks, she saved $1 more than she had saved in the previous week. What was the total amount that Nancy saved during the 52 weeks? |
87% |
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DS-d21xnk |
Is xy + z = z, is |x-y|＞ 0 ?[br/](1)x = 0[br/](2)y = 0 |
60% |
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DS-d01xok |
Is |k| = 2 ?[br/](1)[math]k^2[/math] = 4[br/](2)k =|-2| |
94% |
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PS-1623ok |
If n is the greatest positive integer for which [math]2^n[/math] is a factor of 10!, then n = |
89% |
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PS-c623pk |
Pat invested x dollars in a fund that paid 8 percent annual interest, compounded annually. Which of the following represents the value, in dollars, of Pat’s investment plus interest at the end of 5... |
89% |
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PS-f423qk |
How many 4-digit positive integers are there in which all 4 digits are even? |
61% |
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DS-561xpk |
[img]1220.jpg[/img][br/]In the figure shown, triangle ABC is inscribed in the circle. What is the circumference of the circle?[br/](1)AB is a diameter of the circle.[br/](2)The ratio of the lengths... |
83% |
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DS-3d1xqk |
Color X ink is created by blending red, blue, green, and yellow inks in the ratio 6 : 5 : 2 : 2. What is the number of liters of green ink that was used to create a certain batch of color X ink?[br... |
84% |
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PS-5323rk |
Of the books standing in a row on a shelf, an atlas is the 30th book from the left and the 33rd book from the right. If 2 books to the left of the atlas and 4 books to the right of the atlas are re... |
88% |
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PS-ee23sk |
The average (arithmetic mean) score on a test taken by 10 students was x. If the average score for 5 of the students was 8, what was the average score, in terms of x, for the remaining 5 students w... |
96% |
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PS-151ztk |
[img]0319.jpg[/img][br/]The graph of which of the following equations is a straight line that is parallel to line l in the figure above? |
76% |
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DS-ae1xrk |
If each of the 8 employees working on a certain project received an award, was the amount of each award the same?[br/](1)The standard deviation of the amounts of the 8 awards was 0.[br/](2)The tota... |
85% |
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DS-d11xsk |
What is the value of [math]x^2[/math] ?[br/](1)[math]5 ＜ x^2 ＜ 10[/math][br/](2)x is an integer. |
89% |
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PS-2923uk |
A box contains exactly 24 balls, of which 12 are red and 12 are blue. If two balls are to be picked from this box at random and without replacement, what is the probability that both balls will be ... |
92% |
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PS-2023vk |
If [math]x^2 - 2 ＜ 0[/math], which of the following specifies all the possible values of x ? |
93% |
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DS-ee1vyk |
Joanna bought only $0.15 stamps and $0.29 stamps. How many $0.15 stamps did she buy?[br/](1)She bought $4.40 worth of stamps.[br/](2)She bought an equal number of $0.15 stamps and $0.29 stamps. |
47% |
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PS-e723wk |
Machine A, operating alone at its constant rate, produces 500 feet of a particular fiber in 2 hours. Machine B, operating alone at its constant rate, produces 500 feet of the same fiber in 3 hours.... |
93% |
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PS-2523xk |
A certain right triangle has sides of length x, y, and z, where x ＜ y ＜ z. If the area of this triangular region is 1, which of the following indicates all of the possible values of y ? |
67% |
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DS-361xuk |
What is the value of [math]p^r[/math]?[br/](1)p = 1[br/](2)r = 1 |
83% |
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PS-8023yk |
During a spring season, a certain glacier surged at the rate of 1 mile per 100 days. What was its rate in feet per hour? (1 mile = 5,280 feet) |
93% |
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PS-7523zk |
If [math]2x^2 - y^2 = 2xy[/math], then [math](x + y)^2 =[/math] |
92% |
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DS-261xvk |
The total charge to rent a car for one day from Company J consists of a fixed charge of $15.00 plus a charge of $0.20 per mile driven. The total charge to rent a car for one day from Company K cons... |
83% |
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DS-091wok |
If x, y,and z are positive integers, is xz even?[br/](1)xy is even.[br/](2)yz is even. |
87% |
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PS-33240k |
In a large investment firm, 25 percent of the male employees and 30 percent of the female employees are stockbrokers. If 60 percent of the firm’s employees are males, what is the ratio of the numbe... |
96% |
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GWD模考测试题16
