题号 |
题目内容 |
平均正确率 |
操作 |
DS-342xrk |
For a week Raymond is paid at the rate of x dollars per hour for the first 40 hours he works and y dollars per hour for the hours worked in excess of 40 hours. What is the value of y?[br/](1) If Ra... |
86% |
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PS-cc2ebk |
[math]1/2+[(2/3×3/8)÷4]-9/16[/math] |
46% |
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PS-5e36hk |
Last month a certain music club offered a discount to preferred customers. After the first compact disc purchased, preferred customers paid $3.99 for each additional compact disc purchased. If a pr... |
67% |
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DS-ef299k |
Is the integer P odd?[br/](1)The sum of P, P + 4, and P+ 11 is even.[br/](2)The sum of P - 3, P, and P + 11 is odd. |
78% |
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PS-f52gck |
Thirty percent of the members of a swim club have passed the lifesaving test. Among the members who have not passed the test, 12 have taken the preparatory course and 30 have not taken the course. ... |
92% |
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PS-c72crk |
[math](29^2+29)/29[/math]= |
96% |
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PS-672rmk |
If [math](2 -sqrt5)x = -1[/math], then x = |
91% |
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DS-bb1y5k |
In the decimal representation of x, where 0 < x < 1, is the tenths digit of x nonzero?[br/](1)16x is an integer.[br/](2)8x is an integer. |
51% |
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DS-a4260k |
What is the value of the two-digit integer x ?[br/](1)The sum of the two digits is 3.[br/](2)x is divisible by 3. |
88% |
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DS-341x5k |
If x and z are integers, is at least one of them even?[br/](1)x + z is odd.[br/](2)x - z is odd. |
86% |
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DS-75314k |
What is the average (arithmetic mean) of eleven consecutive integers?[br/](1)The aver age of the first nine integers is 7.[br/](2)The average of the last nine integers is 9.
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64% |
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PS-1e2p3k |
Of the fruit that arrives at a cannery, 20 percent by weight is rejected before processing. Of the fruit that is processed, 15 percent by weight is rejected before canning. Of the fruit that arrive... |
86% |
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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-c5347k |
Last year, a certain company began manufacturing product X and sold every unit of product X that it produced. Last year the company's total expenses for manufacturing product X were equal to $100,0... |
39% |
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DS-1d2p2k |
Is x<y ?[br/](1) The ratio of x to y is [math]7/9[/math].[br/](2) xy>0 |
72% |
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DS-b227mk |
If n and k are greater than zero, is[math]n/k[/math] an integer[br/](1)n and k are both integers.[br/](2)[math]n^2[/math] and [math]k^2[/math] are both integers. |
94% |
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PS-f52w7k |
A sum of money was divided between John and Anne such that the ratio of John’s share to Anne’s share was 5 to 3. If John’s share exceeded [math]5/9[/math] of the sum of money by $50, what was Anne’... |
82% |
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DS-94300k |
[img]20120410182502220_3888.jpg[/img][br/]In the figure above, if x and y are each less than 90 and PS || QR, is the length of segment PQ less than the length of segment SR?[br/](1) x > y[br/](2) ... |
83% |
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PS-bd2gbk |
Last year, for every 100 million vehicles that traveled on a certain highway, 96 vehicles were involved in accidents. If 3 billion vehicles traveled on the highway last year, how many of those vehi... |
81% |
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DS-e91ujk |
Division R of Company Q has 1,000 employees. What is the average (arithmetic mean) annual salary of the employees at Company Q?[br/](1)The average annual salary of the employees in Division R is $3... |
90% |
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PS-b72rpk |
A salesperson received a 6-percent commission on the amount of total sales up to and including $10,000, and an r-percent commission on the amount of total sales over $10,000. If the salesperson rec... |
87% |
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DS-d62bfk |
A certain bookcase has 2 shelves of books. On the upper shelf, the book with the greatest number of pages has 400 pages. On the lower shelf, the book with the least number of pages has 475 pages. W... |
71% |
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PS-1f2z0k |
For which real numbers x is the expression [math]1/((x-2)(x+1))[/math] [u]not[/u] defined? |
91% |
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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-d12w5k |
Is –7 < y < 10 ?[br/](1) y > -6[br/](2) y < 0
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91% |
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DS-d11tmk |
[img]0106.jpg[/img][br/]In the figure shown, line segment AD is parallel to line segment BC. What is the value of x?[br/](1)y=50[br/](2)z=40 |
89% |
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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-0330uk |
Is x less than 20 ?[br/](1)The sum of x and y is less than 20.[br/](2)y is less than 20.
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91% |
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PS-272zrk |
If a, b, c, and d are consecutive even integers and a < b < c < d, then a + b is how much less than c + d ? |
79% |
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PS-a82i0k |
[img]PS11229.jpg[/img][br/]The circle with center C shown above is tangent to both axes. If the distance from 0 to C is equal to k, what is the radius of the circle, in terms of k ? |
94% |
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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.
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90% |
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DS-7f1v0k |
[img]0420.jpg[/img][br/]In the parallelogram shown, what is the value of x?[br/](1)y = 2x[br/](2)x + z = 120 |
88% |
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PS-d11zwk |
Company P had 15 percent more employees in December than it had in January. If Company P had 460 employees in December, how many employees did it have in January? |
87% |
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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-892s8k |
Was Lisa's annual salary at least twice as much as Julie's annual salary?[br/](1) Lisa's annual salary was $20,000 more than Julie's annual salary.[br/](2) Lisa's annual salary was less than $40,000.
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73% |
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PS-9022hk |
If n is the product of the integers from1 to 20 inclusive, what is the greatest integer k for which [math]2^k[/math] is a factor of n? |
74% |
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PS-712hgk |
How many different positive integers are factors of 441? |
52% |
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