| 题号 |
题目内容 |
平均正确率 |
操作 |
PS-173r3k |
Three medical experts, working together at the same constant rate, can write an anatomy textbook in 24 days. How many additional experts, working together at this same constant rate, are needed to ... |
73% |
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PS-e52yek |
A shipment of 8 television sets contains 2 black-and-white sets and 6color sets. If 2 television sets are to be chosen at random from this shipment, what is the probability that at least 1 of the 2... |
85% |
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|
PS-992fik |
A restaurant meal cost $35.50 and there was no tax. If the tip was more than 10 percent but less than15 percent of the cost of the meal, then the total amount paid must have been between |
88% |
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PS-28234k |
If y is the smallest positive integer such that 3,150 multiplied by y is the square of an integer, then y must be |
86% |
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DS-ef1tok |
What is the value of [math](x - y)^4[/math]?[br/](1)The product of x and y is 7.[br/](2)x and y are integers. |
70% |
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PS-9e2ojk |
The function f is defined for each positive three-digit integer n by [math]f(n)=2^x3^y5^z[/math], where x, y and z are the hundreds, tens, and units digits of n, respectively. If m and v are three-... |
76% |
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DS-7733qk |
What is the total number of coins that Bert and Claire have?[br/](1) Bert has 50 percent more coins than Claire.[br/](2) The total number of coins that Bert and Claire have is between 21 and 28.
|
70% |
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DS-032uok |
If [math]R = P/Q[/math] , is R ≤ P ?[br/](1) P ＞ 50[br/](2) 0 ＜ Q ≤ 20 |
69% |
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PS-3d2vek |
How many seconds will it take for a car that is traveling at a constant rate of 45 miles per hour to travel a distance of 220 yards? (1 mile = 1,760 yards) |
93% |
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PS-e33r5k |
Of the following integers, which is the closest approximation to [math](sqrt3 + sqrt7)^2[/math]? |
89% |
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PS-191zgk |
If n is an integer greater than 6, which of the following must be divisible by 3? |
80% |
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PS-01348k |
The numbers of cars sold at a certain dealership on six of the last seven business days were 4, 7, 2, 8, 3, and 6, respectively. If the number of cars sold on the seventh business day was either 2,... |
92% |
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PS-352kgk |
If [x] is the greatest integer less than or equal to x, what is the value of [-1.6] + [3.4] + [2.7] ? |
85% |
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PS-4a2q5k |
If [math]4x＜x＜x^3＜x^2[/math], which of the following is a possible value of x ? |
91% |
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DS-4527sk |
Are positive integers p and q both greater than n?[br/](1)p- q is greater than n.[br/](2)q＞p |
73% |
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DS-7227fk |
If Juan had a doctor's appointment on a certain day, was the appointment on a Wednesday?[br/](1)Exactly 60 hours before the appointment, it was Monday.[br/](2)The appointment was between 1:00 p.m. ... |
78% |
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PS-922xnk |
A gumball dispenser has 24 gumballs, 12 white and 12 black, which are dispensed at random. If the first 3 gumballs dispensed are black, what is the probability that the next gumball dispensed will ... |
88% |
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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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DS-b62xok |
In planning for a trip, Joan estimated both the distance of the trip, in miles, and her average speed, in miles per hour. She accurately divided her estimated distance by her estimated average spee... |
62% |
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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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DS-5a1u7k |
If y is an integer and [math]y =|x| + x[/math], is y = 0?[br/](1)x ＜ 0[br/](2)y＜ 1 |
37% |
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PS-3d22kk |
A set of numbers has the property that for any number t in the set, t + 2 is in the set. If -1 is in the set, which of the following must also be in the set?[br/]I.-3[br/]II.1[br/]III.5 |
52% |
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DS-b425ek |
If P, Q, and R are three distinct points, do line segments PQ and PR have the same length?[br/](1)P is the midpoint of line segment QR.[br/](2)Q and R lie on the same circle with center P. |
93% |
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PS-b22d0k |
[math](sqrt7+sqrt7)^2[/math] |
96% |
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DS-de1uek |
How many liters of apple juice were added to the cranberry juice in a certain container?[br/](1)The amount of apple juice that was added was [math]3/2[/math] the amount of cranberry juice in the co... |
96% |
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DS-c32yok |
If P and R are positive, is 25 percent of P equal to 10 percent of R?[br/](1) R is 150 percent greater than P.[br/](2) P is 60 percent less than R.
|
77% |
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DS-b31uyk |
Is [math]x^2 + y^2 ＞ 6[/math]?[br/](1)[math](x + y)^2 ＞ 6[/math][br/](2)xy = 2 |
67% |
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DS-0f2rrk |
If four of the five integers in a list are 10, 2, 8, and 5, what is the fifth integer?[br/](1) The product of the five integers is 0.[br/](2) The sum of the five integers is 25.
|
96% |
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DS-8e307k |
Is the product of a certain pair of integers even?[br/](1)The sum of the integers is odd.[br/](2)One of the integers is even and the other is odd.
|
82% |
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DS-9c291k |
Is x negative?[br/](1)[math]x^3(l-x^2)＜0[/math][br/](2)[math]x^2-l＜0[/math] |
78% |
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DS-9637hk |
If X and Y are points in a plane and X lies inside the circle C with center 0 and radius 2, does Y lie inside circle C ?[br/](1) The length of line segment XY is 3.[br/](2) The length of line segme... |
92% |
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DS-c82zbk |
A bookstore that sells used books sells each of its paperback books for a certain price and each of its hardcover books for a certain price. If Joe, Maria, and Paul bought books in this store, how ... |
76% |
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PS-e71zek |
If k = -1, which of the following is (are) true?[br/]I.[math]k^k = k[/math][br/]II.[math]|k|=-k[/math][br/]III.[math]k^0=-k[/math] |
81% |
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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-0c21nk |
For all positive integers m and v, the expression m Θ v represents the remainder when m is divided by v. What is the value of ((98Θ33)Θ17)-(98Θ(33Θ17)) ? |
91% |
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DS-1b2z4k |
The positive integer k has exactly two positive prime factors, 3 and 7. If k has a total of 6 positive factors, including 1 and k, what is the value of k?[br/](1) [math]3^2[/math] is a factor of k.... |
38% |
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PS-532kok |
A point on the edge of a fan blade that is rotating in a plane is 10 centimeters from the center of the fan. What is the distance traveled, in centimeters, by this point in 15 seconds when the fan ... |
69% |
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TN模考试题17
