| 题号 |
题目内容 |
平均正确率 |
操作 |
DS-d31wpk |
A family-size box of cereal contains more cereal and costs more than the regular-sizebox
of cereal. What is the cost per ounce of the family-size box of cereal?[br/](1)The family-size box of cerea... |
85% |
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PS-4522gk |
A certain roller coaster has 3 cars, and a passenger is equally likely to ride in any 1 of the 3 cars each time that passenger rides the roller coaster. If a certain passenger is to ride the roller... |
66% |
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DS-231wqk |
If x and y are positive, is 4x ＞ 3y?[br/](1)x＞y - x[br/](2)[math]x/y ＜ 1[/math] |
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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DS-bc1wrk |
Is x ＞ k?[br/](1)[math]2^x*2^K=4[/math][br/](2)[math]9^X*3^K=81[/math] |
83% |
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DS-e51wsk |
If x and y are positive, what is the value of x -y?[br/](1)[math](X^2-Y^2)/(X+Y)=1[/math][br/](2)X+Y=7 |
85% |
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PS-4e22ik |
A circular mat with diameter 20 inches is placed on a square tabletop, each of whose sides is 24 inches long. Which of the following is closest to the fraction of the tabletop covered by the mat? |
67% |
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DS-d21wtk |
In 1997 there were 300 female employees at Company C. If the number of female
employees at Company C increased by 60 percent from 1977 to 1987, by what percent
did the number of female employees ... |
80% |
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PS-4622jk |
A gardener is going to plant 2 red rosebushes and 2 white rosebushes. If the gardener is to select each of the bushes at random, one at a time, and plant them in a row, what is the probabilitythatt... |
72% |
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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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PS-d722lk |
In a corporation, 50 percent of the male employees and 40 percent of the female employees are at least 35 years old. If 42 percent of all the employees are at least 35 years old, what fraction of t... |
82% |
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DS-081wuk |
If n is an integer and 2 ＜ n ＜ 6, what is the value of n?[br/](1)n is a factor of 15.[br/](2)n is a factor of 21. |
66% |
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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-7022mk |
If [math]10^50-74[/math] is written as an integer in base 10 notation, what is the sum of the digits in that integer? |
70% |
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PS-d722nk |
Ann, Carol, and Judy paid a total of $45 for their dinner at a restaurant. If Ann paid [math]2/5[/math] of the total amount, Carol paid $17, and Judy paid the rest, what fraction of the total amoun... |
95% |
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DS-371wwk |
If J, S, and V are points on the number line, what is the distance between S and V?[br/](1)The distance between J and S is 20.[br/](2)Thedistance between J and V is 25. |
79% |
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PS-8622ok |
In Town X, 64 percent of the population are employed, and 48 percent of the population are employed males. What percent of the employed people in Town X are females? |
55% |
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PS-4922pk |
[img]10m18.jpg[/img][br/]The figure shows a square patio surrounded by a walkway of width x meters. If the area of the walkway is 132 square meters and the width of the patio is 5 meters greater th... |
76% |
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DS-1225pk |
What number is 15 percent of x ?[br/](1)18 is 6 percent of x.[br/](2)[math]2/3[/math] of x is 200. |
93% |
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PS-1e22qk |
If x ＞ 0, then [math]1/(sqrt(2x)+sqrtx)[/math] = |
86% |
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|
PS-e522rk |
When Leo imported a certain item, he made a 7 percent import tax on the portion of the total value of the item in excess of $1,000. If the amount of the import tax that Leo paid was $87.50, what wa... |
94% |
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PS-2720jk |
In the sequence 1, 2, 4, 8, 16, 32, …, each term after the first is twice the previous term. What is the sum of the 16th, 17th, and 18th terms in the sequence? |
85% |
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DS-a51wyk |
In the xy-plane, point (r, s) lies on a circle with center at the origin. What is the value of [math]r^2+s^2[/math]?[br/](1)The circle has radius 2.[br/](2)The point ([math]sqrt(2)[/math], [math]-s... |
81% |
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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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PS-4a22sk |
A photographer will arrange 6 people of 6 different heights for photograph by placing them in two rows of three so that each person in the first row is standing in front of someone in the second ro... |
61% |
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PS-3922tk |
Running at their respective constant rates, machine X takes 2 days longer to produce w widgets than machine Y. At these rates, if the two machines together produce [math]5/4[/math] w widgets in 3 d... |
55% |
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PS-1022uk |
If [math]n = 8^11-8[/math], what is the units digit of n? |
68% |
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PS-4722vk |
For any positive integer n, the sum of the first n positive integers equals [math][n(n+1)]/2[/math]. What is the sum of all the even integers between 99 and 301? |
66% |
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PS-5e22wk |
June 25, 1982, fell on a Friday. On which day of the week did June 25, 1987, fall? (Note:1984 was a leap year.) |
65% |
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DS-ee1vyk |
Joanna bought only $0.15 stamps and $0.29 stamps. How many $0.15 stamps did she buy?[br/](1)She bought $4.40 worth of stamps.[br/](2)She bought an equal number of $0.15 stamps and $0.29 stamps. |
47% |
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PS-c622xk |
A positive integer n is said to be "prime-saturated" if the product of all the different
positive prime factors of n is less than the square root of n. What is the greatest two-digit
prime-satura... |
60% |
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DS-bc1x1k |
For a convention, a hotel charges a daily room rate of $120 for 1 person and x dollars for
each additional person. What is the charge for each additional person?[br/](1)The daily cost per person f... |
79% |
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DS-731u6k |
Is [math]xy ＞ x/y[/math]?[br/](1)xy＞0[br/](2)y＜0 |
84% |
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PS-e61zak |
The function f is defined by [math]f(x) = - 1/x[/math] for all nonzero numbers x. If [math]f(a) = - 1/2[/math] and [math]f(ab) = 1/6[/math], then b = |
84% |
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|
DS-a61ubk |
What is the median number of employees assigned per project for the projects at Company Z?[br/](1)25 percent of the projects at Company Z have 4 or more employees assigned to each project.[br/](2)3... |
74% |
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PS-5d22zk |
Each signal that a certain ship can make is comprised of 3 different flags hanging vertically in a particular order. How many unique signals can be made by using 4 different flags? |
85% |
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|
PS-6d230k |
A jar contains 16 marbles, of which 4 are red, 3 are blue, and the rest are yellow. If 2 marbles are to be selected at random from the jar, one at a time without being replaced, what is the probabi... |
81% |
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GWD模考测试题01
