| 题号 |
题目内容 |
平均正确率 |
操作 |
DS-031tqk |
If x and y are positive, is [math]x^3 ＞ y[/math]?[br/](1)[math]sqrt x ＞ y[/math][br/](2)x ＞ y |
69% |
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DS-cd2p0k |
By what percent was the price of a certain television set discounted for a sale?[br/](1) The price of the television set before it was discounted for the sale was 25 percent greater than the discou... |
80% |
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|
PS-4e2dlk |
lf x+5＞2 and x-3＜7, the value of x must be between which of the following pairs of numbers? |
90% |
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PS-11223k |
During a trip, Francine traveled x percent of the total distance at an average speed of 40 miles per hour and the rest of the distance at an average speed of 60 miles per hour. In terms of x, what ... |
78% |
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PS-e93rqk |
[math]x^6-y^6=[/math] |
86% |
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DS-9837ck |
Is the standard deviation of the set of measurements [math]x_1[/math],[math]x_2[/math],[math]x_3[/math],[math]x_4[/math],....[math]x_20[/math] less than 3 ?[br/](1) The variance for the set of meas... |
62% |
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DS-9f1vrk |
What is the value of [math](3^(-(x + y))) /( 3^(-(x - y)))[/math]?[br/](1)x = 2[br/](2)y = 3 |
76% |
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DS-ab2yjk |
During a 10-week summer vacation, was the average (arithmetic mean) number of books that Carolyn read per week greater than the average number of books that Jacob read per week?[br/](1) Twice the a... |
50% |
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PS-2624ek |
[img]1401.jpg[/img][br/]The table above gives the coffee consumption in 1994 for five countries. If the total coffee consumption of these countries was 40 percent of the world’s coffee consumption,... |
95% |
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PS-a73rok |
What is the remainder, after division by 100, of [math]7^10[/math]? |
82% |
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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-3a3rnk |
Four concentric circles share the same center. The smallest circle has a radius of 1 inch. For n greater than 1, the area of the nth smallest circle in square inches, [math]A_n[/math], is given by ... |
70% |
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DS-37304k |
If x is a positive integer, is x ＜ 16 ?[br/](1)x is less than the average (arithmetic mean) of the first ten positive integers.[br/](2)x is the square of an integer.
|
81% |
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PS-ce2d5k |
The average (arithmetic mean) of 10, 30, and 50 is 5 more than the average of 20, 40, and |
90% |
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PS-732c5k |
The ratio 2 to [math]1/3[/math] is equal to the ratio |
97% |
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DS-0828dk |
The inflation index for the year 1989 relative to the year 1970 was 3.56, indicating that, on the average, for each dollar spent in 1970 for goods, $3.56 had to be spent for the same goods in 1989.... |
87% |
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PS-f42tck |
A farmer produced 750 bushels of a certain crop at a cost of $20 per bushel. If the farmer sold [math]2/3[/math] of the bushels for double their production cost and sold the remaining bushels at 25... |
81% |
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DS-292zqk |
A certain theater has a total of 884 seats, of which 500 are orchestra seats and the rest are balcony seats. When tickets for all the seats in the theater are sold, the total revenue from ticket sa... |
83% |
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PS-bc1znk |
[img]0310.jpg[/img][br/]In the figure shown, two identical squares are inscribed in the rectangle. If the perimeter of the rectangle is [math]18sqrt2[/math], then what is the perimeter of each square? |
84% |
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DS-ac1x9k |
If wz ＜ 2, is z ＜ 1?[br/](1)w ＞ 2[br/](2)z ＜ 2 |
93% |
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DS-9a2qtk |
Is x＞5 ?[br/](1) [math]x^2＞25[/math][br/](2) 2x+7＞0
|
84% |
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DS-302aek |
Leo can buy a certain computer for [math]P_1[/math] dollars in State A, where the sales tax is [math]t_1[/math] percent, or he can buy the same computer for [math]p_2[/math] dollars in State B, whe... |
73% |
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|
PS-8522dk |
A certain fruit stand sold apples for $0.70 each and bananas for $0.50 each. If a customer purchased both apples and bananas from the stand for a total of $6.30, what total number of apples and ban... |
90% |
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PS-4b23fk |
A store’s selling price of $2,240 for a certain computer would yield a profit of 40 percent of the store’s cost for the computer. What selling price would yield a profit of 50 percent of the comput... |
86% |
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|
DS-f02a4k |
Stores L and M each sell a certain product at a different regular price. If both stores discount their regular price of the product, is the discount price at Store M less than the discount price at... |
80% |
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|
PS-272cmk |
If [math]1.5/(0.2+x)[/math]=5,then x= |
95% |
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|
DS-db2q3k |
Is the integer n even?[br/](1) n – 5 is an odd integer.[br/](2) n/5 is an even integer.
|
89% |
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|
DS-b82r3k |
If each of the students in a certain mathematics class is either a junior or a senior, how many students are in the class?[br/](1) If one student is to be chosen at random from the class to attend ... |
94% |
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|
PS-0334sk |
Club X has more than 10 but fewer than 40 members. Sometimes the members sit at tables with 3 members at one table and 4 members at each of the other tables, and sometimes they sit at tables with 3... |
77% |
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DS-d3377k |
What is the value of the integer p ?[br/](1) Each of the integers 2, 3, and 5 is a factor of p.[br/](2) Each of the integers 2, 5, and 7 is a factor of p.
|
90% |
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PS-d83rlk |
The velocity, density, and pressure of a certain fluid are related by the equation [math]5v^2+P=c[/math], where v is the velocity in meters per second, P is the pressure in pascals, and c is a cons... |
89% |
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DS-331wek |
What is the value of x ?[br/](1)[math]x^2 + y^2[/math] = 25[br/](2)xy = 12 |
82% |
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PS-6820pk |
If an automobile averaged 22.5 miles per gallon of gasoline, approximately how many kilometers per liter of gasoline did the automobile average? (1 mile = 1.6 kilometers and 1 gallon = 3.8 liters, ... |
86% |
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DS-952r7k |
Is │x - y│＞│x - z│?[br/](1) │y│＞│z│[br/](2) x＜0
|
78% |
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PS-ab2dkk |
If[math]y((3x-5)/2)=y[/math] and [math]y!=0[/math],then x= |
91% |
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|
PS-8b2iek |
A straight pipe 1 yard in length was marked off in fourths and also in thirds. If the pipe was then cut into separate pieces at each of these markings, which of the following gives all the differen... |
76% |
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|
PS-9b2k3k |
If s is the product of the integers from 100 to 200, inclusive, and t is the product of the integers from 100 to 201, inclusive, what is [math]1/s+1/t[/math] in terms of t? |
85% |
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TN模考试题21
