| 题号 |
题目内容 |
平均正确率 |
操作 |
PS-da21mk |
If Henry were to add 5 gallons of water to a tank that is already [math]3/4[/math] full of water, the tank would be [math]7/8[/math] full. How many gallons of water would the tank hold if it were f... |
96% |
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PS-e92wek |
For which of the following functions f is f（x） = f（1-x） for all x? |
81% |
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PS-852wfk |
Which of the following is equal to [math]1/6 * (42)^6[/math]? |
98% |
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DS-cb2wgk |
On a given day, 50 people took a test that is designed to measure a candidate’s aptitude. Some of the 50 people will take the test in the morning, and the remaining of the 50 people will take the t... |
87% |
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DS-bb2whk |
If r = (x+y)/2 and s = (x-y)/2, what is the value of r + s?[br/](1) y = 4[br/](2) x = 6
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95% |
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PS-552wik |
An analyst will recommend a combination of 3 industrial stocks, 2 transportation stocks, and 2 utility stocks. If the analyst can choose from 5 industrial stocks, 4 transportation stocks, and 3 uti... |
89% |
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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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PS-2c2wjk |
If |x - 1| - |x - 2| = 0, then x =? |
90% |
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PS-281zfk |
A certain computer program generates a sequence of numbers [math]a_1[/math], [math]a_2[/math], … , an such that [math]a_1 = a_2 = 1[/math] and [math]a_k=a_(k-1)+2a_(k-2)[/math] for all integers k s... |
92% |
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DS-612wkk |
If $1,000 will be deposited in a bank account and I is the dollar amount of interest earned from the original deposit, represented as [math]I = 1000 {(1 + r/100)^n – 1}[/math], and the annual inter... |
49% |
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DS-e71ugk |
Is [math]|x|＜ 1[/math]?[br/](1)[math]|x + 1| = 2|x - 1|[/math][br/](2)[math]|x - 3| ≠ 0[/math] |
70% |
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PS-762wlk |
Each person who attended a company meeting was either a stockholder in the company, an employee of the company, or both. If 62 percent of those who attended the meeting were stockholders and 47 per... |
91% |
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PS-a42wmk |
[math]（1/(4-sqrt(15))）^2=[/math] |
90% |
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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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PS-f72wnk |
[img]20120408154717457_3767.jpg[/img][br/]There are 161 employees at Company X. The above table shows the age category of all the employees. According to the table, if m is the median age, in years... |
89% |
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|
PS-36200k |
M = {-6, -5, -4, -3, -2}[br/]
T = {-2, -1, 0, 1, 2, 3}[br/]
If an integer is to be randomly selected from set M above and an integer is to be randomly selected from set T above, what is the proba... |
72% |
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PS-1d2wok |
A certain right circular cylinder has a radius of 5 inches. There is a kind of liquid filled in this cylinder to the height of 9 inches. If this liquid is poured completely into a second right cyli... |
94% |
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DS-7e2wpk |
If q is a positive integer less than 17 and r is the remainder when 17 is divided by q, what is the value of r?[br/](1) q ＞ 10[br/](2) [math]q = 2^k[/math], where k is a positive integer. |
58% |
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DS-d82wqk |
Is 12 a factor of the positive integer n?[br/](1) n is a factor of 36.[br/](2) 3 is a factor of n.
|
79% |
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PS-392wrk |
A retailer bought a machine at a wholesale price of $90 and later on sold it after a 10% discount of the retail price. If the retailer made a profit equivalent to 20% of the wholesale price, what i... |
92% |
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PS-ef2wsk |
On January 1, 1994, Jill invested P dollars in an account that pays interest at a rate of 8 percent per year, compounded annually on December 31. If there were no other deposits or withdrawals in t... |
94% |
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PS-70227k |
A researcher plans to identify each participant in a certain medical experiment with a code consisting of either a single letter or a pair of distinct letters written in alphabetical order. What is... |
58% |
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PS-022z2k |
[img]20120409152334438_3854.jpg[/img][br/]The figure above is a cube. What is the measure of angle BEG (not shown)? |
78% |
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DS-bc1wjk |
Max has $125 consisting of bills each worth either $5 or $20. How many bills worth $5 does Max have?[br/](1)Max has fewer than 5 bills worth $5 each.[br/](2)Max has more than 5 bills worth $20 each. |
69% |
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|
DS-531wkk |
At a sale all books were priced equally and all magazines were priced equally. What was the price of 3 books and 4 magazines at the sale?[br/](1)At the sale the price of a book was $1.45 more than ... |
82% |
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PS-57229k |
How many different 6-letter sequences are there that consist of 1 A,2 B's,and3 C's ? |
49% |
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PS-322kck |
A pharmaceutical company received $3 million in royalties on the first $20 million in sales of the generic equivalent of one of its products and then $9 million in royalties on the next $108 millio... |
61% |
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|
PS-0122bk |
If n is a positive integer, what is the remainder when (7^(4n+3))(6^n) is divided by 10 ? |
70% |
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DS-f41wlk |
Is the integer n odd?[br/](1)n is divisible by3.[br/](2)2n is divisible by twice as many positive integers as n. |
49% |
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PS-a422ck |
[img]09m22.jpg[/img][br/]According to the chart shown, which of the following is closest to the median annual number of shipments of manufactured homes in the United States for the years from 1990 ... |
67% |
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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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DS-a61wmk |
A certain list consists of 3 different numbers. Does the median of the 3 numbers equal the average (arithmetic mean) of the 3 numbers?[br/](1)The range of the 3 numbers is equal to twice the differ... |
59% |
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PS-e322ek |
Working simultaneously and independently at an identical constant rate, 4 machines of a certain type can produce a total of x units of product P in 6 days. How many of these machines, working simul... |
89% |
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PS-7e2wtk |
Of the 2,500 tons of ore mined daily at a quarry, 0.4 percent results in a certain pure metal. In how many days of mining will the total amount of pure metal produced at the quarry be equal to the ... |
86% |
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DS-811wnk |
The weights of all dishes of type X are exactly the same, and the weights of all dishes of type Y are exactly the same. Is the weight of 1 dish of type X less than the weight of 1 dish of type Y ?[... |
90% |
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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-8322fk |
A club with a total membership of 30 has formed 3 committees, M, S, and R, which have 8, 12, and 5 members, respectively. If no member of committee M is on either of the other 2 committees, what is... |
77% |
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GWD模考测试题19
