| 题号 |
题目内容 |
平均正确率 |
操作 |
PS-d42y5k |
To be eligible for retirement benefits at the Omega Corporation, the sum of an employee’s age, in years, and the number of years of employment must be at least 70. If x, where x ＜ 70, is a certain... |
49% |
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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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DS-472pak |
If [math]x^2+y^2=1[/math], is x + y = 1?[br/](1) xy = 0[br/](2) y = 0 |
68% |
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PS-a12dak |
A glucose solution contains 15 grams of glucose per 100 cubic centimeters of solution. If 45 cubic centimeters of the solution were poured into an empty container, how many grams of glucose would b... |
94% |
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DS-9d2axk |
A department manager distributed a number of pens, pencils, and pads among the staff in the department, with each staff member receiving x pens, y pencils, and z pads. How many staff members were i... |
64% |
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PS-5b2gsk |
Car X and Car Y traveled the same 80-mile route. If Car X took 2 hours and Car Y traveled at an average speed that was 50 percent faster than the average speed of Car X, how many hours did it take ... |
94% |
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DS-a225sk |
What is the value of xy - yz?[br/](1)y=2[br/](2)x-z=5 |
97% |
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DS-d9274k |
In the xy-plane, does the point (4, 12) lie on line k?[br/](1)The point (1, 7) lies on line k.[br/](2)The point (-2, 2) lies on line k. |
93% |
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DS-cc30wk |
If xy = -18, is x less than y?[br/](1)x＜0[br/](2)y＜10
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94% |
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PS-7a1z4k |
Of the 500 business people surveyed, 78 percent said that they use their laptop computers at home, 65 percent said that they use them in hotels, and 52 percent said that they use them both at home ... |
92% |
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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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DS-a32p8k |
If x is an integer, is 3x + 7 even?[br/](1) (x – 5)(x + 1) = 0[br/](2) x is a factor of 105. |
86% |
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PS-2e2evk |
[img]PS11116.jpg[/img][br/]Each · in the mileage table above represents an entry indicating the distance between a pair of the five cities. If the table were extended to represent the distances bet... |
74% |
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PS-ef34mk |
A ladder of a fire truck is elevated to an angle of 60° and extended to a length of 70 feet. If the base of the ladder is 7 feet above the ground, how many feet above the ground does the ladder reach? |
84% |
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PS-4f2ghk |
Of the final grades received by the students in acertain math course, [math]1/5[/math] are A's, [math]1/4[/math] are B's,[math]1/2[/math] are C's,and the remaining 10 grades are D's. What is the nu... |
97% |
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PS-6c2c2k |
A bakery opened yesterday with its daily supply of 40 dozen rolls. Half of the rolls were sold by noon, and 80 percent of the remaining rolls were sold between noon and closing time. How many dozen... |
98% |
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DS-e02s5k |
If the average (arithmetic mean) of 5 different numbers is 12, what is the median of the 5 numbers?[br/](1) The median of the 5 numbers is equal to [math]1/3[/math] of the sum of the 4 numbers othe... |
81% |
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DS-1d1w3k |
If k, m, and t are positive integers and [math]k/6 + m/4 = t/12[/math], do t and 12 have a common factor greater than 1 ?[br/](1)k is a multiple of 3.[br/](2)m is a multiple of 3. |
66% |
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DS-f42pvk |
A total of 100 customers purchased books at a certain bookstore last week. If these customers purchased a total of 200 books, how many of the customers purchased only 1 book each?[br/](1) None of t... |
55% |
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PS-312pok |
According to a survey, 93 percent of teenagers have used a computer to play games, 89 percent have used a computer to write reports, and 5 percent have not used a computer for either of these purpo... |
93% |
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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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DS-5e1uhk |
A box contains 10 light bulbs, fewer than half of which are defective. Two bulbs are to be drawn simultaneously from the box. If n of the bulbs in box are defective, what is the value of n?[br/](1)... |
71% |
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PS-8731vk |
For which of the following functions is f(a + b)=f(a) + f(b) for all positive numbers a and b ? |
79% |
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DS-a42yvk |
If ¼ of the larger of two numbers is greater than 5 times the smaller of the same two numbers, is the smaller number less than 4?[br/](1) The larger number is greater than 70.[br/](2) The larger nu... |
78% |
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DS-7c1x2k |
Is [math]xy ＞ x/y[/math]?[br/](1)xy ＞ 0[br/](2)y ＜ 0 |
88% |
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DS-9f297k |
The charge for a telephone call between City R and City S is $0.42 for each of the first 3 minutes and $0.18 for each additional minute. A certain call between these two cities lasted for x minutes... |
91% |
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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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DS-a32vxk |
Each of 20 parents chose one of five days from Monday through Friday to attend parent-teacher conferences. If more parents chose Monday than Tuesday, did at least one of the parents choose Friday?[... |
68% |
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DS-0b30gk |
An insurance company has a contract with a medical laboratory to pay a discounted price for a certain medical test performed on patients referred to the laboratory by the insurance company. If the ... |
89% |
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PS-7a2dyk |
What is the decimal equivalent of [math](1/5)^5[/math] |
91% |
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DS-fe24vk |
Is r greater than 0.27?[br/](1)r is greater than[math]1/4[/math][br/](2)r is equal to[math]3/10[/math] |
94% |
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DS-7a1wvk |
If x and y are positive, is 3x ＞ 7y?[br/](1)x ＞ y + 4[br/](2)-5x＜ -14y |
72% |
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PS-282r8k |
Raymond purchased a package of ground beef at a cost of $1.98 per pound. If, for the same amount of money, Raymond could have purchased a piece of steak that weighed 40 percent less than the packag... |
90% |
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DS-47273k |
On a company-sponsored cruise, [math]2/3[/math] of the passengers were company employees and the remaining passengers were their guests. If [math]3/4[/math]of the company-employee passengers were m... |
95% |
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PS-e82qfk |
A toy store's gross profit on a computer game was 10 percent of the cost of the game. If the store increased the selling price of the game from $44 to $46 and the cost of the game remained the same... |
83% |
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DS-a0379k |
What is the perimeter of isosceles triangle MNP ?[br/](1) MN = 16[br/](2) NP = 20
|
80% |
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DS-e62a1k |
If the ratio of the number of teachers to the number of students is the same in School District M and School District P, what is the ratio of the number of students in School District M to the numb... |
73% |
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TN模考试题04
