| 题号 |
题目内容 |
平均正确率 |
操作 |
DS-e11yck |
What was the price at which a merchant sold a certain appliance?[br/](1)The merchant’s gross profit on the appliance was 20 percent of the price at which the merchant sold the appliance.[br/](2)The... |
85% |
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DS-8b378k |
If the length of Wanda's telephone call was rounded up to the nearest whole minute by her telephone company, then Wanda was charged for how many minutes for her telephone call?[br/](1) The total ch... |
79% |
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PS-363sbk |
The tens digit of [math]6^17[/math] is |
61% |
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PS-da2uzk |
[img]20120407201106879_3707.jpg[/img][br/]In the figure shown, if the area of the shaded region is 3 times the area of the smaller circular region, then the circumference of the larger circle is ho... |
74% |
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PS-9e1z7k |
Last year, 36 houses in a certain development had roof repairs and 48 houses were repainted. If 20 houses in the development had roof repairs but were not repainted last year, how many houses were ... |
94% |
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PS-0e2xqk |
Working at their respective constant rates, machine A makes 100 copies in 12 minutes and machine B makes 150 copies in 10 minutes. If these machines work simultaneously at their respective rates fo... |
97% |
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PS-b031mk |
In a certain game, the units of currency of three countries are the crown, the shield, and the pound, respectively. If 2 crowns equal 3 shields and 3 shields equal 4 pounds, how many crowns equal 1... |
91% |
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PS-e4242k |
Of the total amount that Jill spent on a shopping trip, excluding taxes, she spent 50 percent on clothing, 20 percent on food, and 30 percent on other items. If Jill paid a 4 percent tax on the clo... |
88% |
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DS-8c263k |
If [math]xy!= 0[/math], is [math]x/y[/math] ＜ 0 ?[br/](1)x=-y[br/](2)-x = -(-y) |
95% |
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DS-0e285k |
If v and w are different integers, does v=0?[br/](1)[math]vw=v^2[/math][br/](2)w=2 |
63% |
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PS-8b1zuk |
The ratio of the number of boys to the number of girls in a certain school club is 3 : 4. If there are 5 more girls than boys in the club, how many girls are in the club? |
97% |
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DS-c01v2k |
In the xy-plane, the line with equation ax + by + c = 0, where [math]abc != 0[/math], has slope [math]2/3[/math]. What is the value of b?[br/](1)a = 4[br/](2)c = -6 |
93% |
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DS-3225uk |
[img]DS1139.jpg[/img][br/]A circular tub has a band painted around its circumference, as shown above. What is the surface area of this painted band?[br/](1)x = 0.5[br/](2)The height of the tub is 1... |
94% |
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PS-e9218k |
If a committee of 3 people is to be selected from among 5 married couples so that the committee does not include two people who are married to each other, how many such committees are possible? |
60% |
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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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DS-3c2ayk |
Machines X and Y produced identical bottles at different constant rates. Machine X, operating alone for 4 hours, filled part of a production lot; then Machine Y, operating alone for 3 hours, filled... |
70% |
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DS-bc2vak |
Was the average (arithmetic mean) weight of the package mailed at a certain post office yesterday greater than 600 grams?[br/](1) The total weight of the packages mailed at the post office yesterda... |
56% |
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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-de3sck |
x is replaced by 1 - x everywhere in the expression [math]1/x - 1/(1-x)[/math], with [math]x!=0[/math] and [math]x!=1[/math]. If the result is then multiplied by [math]x^2 - x[/math], the outcome e... |
77% |
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DS-651tsk |
Tom, Jane, and Sue each purchased a new house. The average (arithmetic mean) price of the three houses was $120,000. What was the median price of the three houses?[br/](1)The price of Tom's house w... |
71% |
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PS-332hfk |
S is a set containing 9 different numbers.T is a set containing 8 different numbers, all of which are members of S. Which of the following statements CANNOT be true? |
66% |
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DS-971wzk |
If w and c are integers, is w ＞ 0?[br/](1)w + c ＞ 50[br/](2)c＞48 |
78% |
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DS-8f268k |
A certain company currently has how many employees?[br/](1)If 3 additional employees are hired by the company and all of the present employees remain, there will be at least 20 employees in the com... |
86% |
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DS-fd2olk |
If x and y are integers and x ＞ 0, is y ＞ 0?[br/](1) 7x – 2y ＞ 0[br/](2) -y ＜ x |
83% |
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DS-a41y7k |
If xyz ≠ 0, is x(y+z) ≥ 0 ?[br/](1)|y+z| = |y|+|z|[br/](2)|x+y| = |x|+|y| |
84% |
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|
DS-bf1vek |
Lines k and m are parallel to each other. Is the slope of line k positive?[br/](1)Line k passes through the point (3, 2).[br/](2)Line m passes through the point (-3, 2). |
92% |
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PS-5d3sek |
At the beginning of year 1, an investor puts p dollars into an investment whose value increases at a variable rate of [math]x_n%[/math] per year, where n is an integer ranging from 1 to 3 indicatin... |
70% |
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DS-2127zk |
what is the value of [math](a+b)^2[/math][br/](1)ab=0[br/](2)[math](a-b)^2[/math]=36 |
95% |
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PS-923sak |
A circle is inscribed in an equilateral triangle, such that the two figures touch at exactly 3 points, one on each side of the triangle. Which of the following is closest to the percent of the area... |
49% |
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PS-902kek |
Which of the following is equivalent to the pair of inequalities x + 6＞10 and x-3≤5 |
97% |
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DS-df2ouk |
What is the value of the ratio of x to [math]y^2[/math]?[br/](1) The ratio of [math]x^2[/math] to y is [math]5/3[/math].[br/](2) The ratio of x to 1 is [math]5/3[/math].
|
90% |
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PS-db2fbk |
In a small snack shop, the average (arithmetic mean) revenue was $400 per day over a 10-day period. During this period, if the average daily revenue was $360 for the first 6 days, what was the aver... |
97% |
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PS-d32gjk |
A rectangular box is 10 inches wide, 10 inches long, and 5 inches high. What is the greatest possible (straight-line) distance, in inches, between any two points on the box? |
88% |
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PS-cb2x5k |
The charge for a single room at Hotel P is 25 percent less than the charge for a single room at Hotel R and 10 percent less than the charge for a single room at Hotel G. The charge for a single roo... |
78% |
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PS-012hrk |
John and Mary were each paid x dollars in advance to do a certain job together. John worked on the job for 10 hours and Mary worked 2 hours less than John. If Mary gave John y dollars of her paymen... |
64% |
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DS-4a26pk |
Is ax = 3-bx?[br/](1)x(a + b) = 3[br/](2)a = b = 1.5 and x = 1 |
93% |
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PS-9e2eok |
All the following have the same value EXCEPT |
91% |
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PREP模考试卷08
