| 题号 |
题目内容 |
平均正确率 |
操作 |
DS-e229nk |
The selling price of an article is equal to the cost of the article plus the markup. The markup on a certain television set is what percent of the selling price?[br/](1)The markup on the television... |
85% |
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PS-5323rk |
Of the books standing in a row on a shelf, an atlas is the 30th book from the left and the 33rd book from the right. If 2 books to the left of the atlas and 4 books to the right of the atlas are re... |
88% |
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PS-4b2wwk |
The sum of the first k positive integers is equal to [math](k（k+1）)/2[/math]. What is the sum of the integers from n to m, inclusive, where 0 ＜ n ＜ m ? |
80% |
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PS-af2okk |
If f is the function defined for all k by f(k) = [math](k^5)/(16)[/math], what is f(2k) in terms of f(k)? |
92% |
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PS-d823kk |
If the average (arithmetic mean) of positive integers x, y, and z is 10, what is the greatest possible value of z ? |
92% |
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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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DS-b91w7k |
Is the number of seconds required to travel [math]d_1[/math] feet at [math]r_1[/math] feet per second greater than the number of seconds required to travel [math]d_2[/math] feet at [math]r_2[/math]... |
79% |
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PS-ef2jck |
[math]1-(1/2- 2/3)[/math]= |
94% |
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DS-e51vkk |
What is the sum of a certain pair of consecutive odd integers?[br/](1)At least one of the integers is negative.[br/](2)At least one of the integers is positive. |
67% |
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DS-b71vsk |
If the symbol ▽ represents either addition, subtraction, multiplication, or division, what is the value of 6 ▽ 2?[br/](1)10 ▽ 5 = 2[br/](2)4 ▽ 2 = 2 |
90% |
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DS-0d2u9k |
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.
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56% |
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DS-0128gk |
Every member of a certain club volunteers to contribute equally to the purchase of a $60 gift certificate. How many members does the club have?[br/](1)Each member's contribution is to be $4.[br/](2... |
81% |
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DS-6333zk |
If [x] denotes the least integer greater than or equal to x, is [x] = 0 ?[br/](1) -1 ＜ x＜ 1[br/](2) x ＜ 0
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71% |
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PS-593rek |
Which of the following inequalities has a solution set that, when graphed on a number line, is a single, finite line segment? |
87% |
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PS-f82d4k |
Of the following, which is the closest approximation of [math]0.52*0.49/1.998[/math] |
86% |
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DS-9525nk |
In △PQR, if PQ = x, QR = x + 2, and PR = y, which of the three angles of △PQR has the greatest degree measure?[br/](1)y=x + 3[br/](2)x = 2 |
86% |
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PS-a23r6k |
What is the sum of the different positive prime factors of 1092? |
80% |
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PS-3a3rak |
At a delivery store, seven packages have an average (arithmetic mean) weight of 225 pounds and a median weight of 270 pounds. What is the maximum possible weight, in pounds, of the lightest package? |
73% |
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PS-f72ftk |
if x=-1,then [math](x^4-x^3+x^2)/(x-1)[/math] |
92% |
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PS-e2203k |
A certain company that sells only cars and trucks reported that revenues from car sales in 1997 were down 11 percent from 1996 and revenues from truck sales in 1997 were up 7 percent from 1996. If ... |
84% |
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PS-8c2otk |
If [math]k/60125=0.001[/math], what is the units digit of k? |
86% |
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PS-433rck |
The number of students enrolled at school X this year is 7 percent more than it was last year. The number of students enrolled at school Y this year is 3 percent more than it was last year. If scho... |
79% |
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DS-d92yyk |
What is the value of [math]x^2yz+xy^2z+xyz^2[/math][br/](1) x+y+z=18[br/](2) xyz=10
|
94% |
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PS-b73rdk |
If m denotes a number to the left of 0 on the number line such that [math]m^4[/math] is less than [math]1/81[/math], then the the reciprocal of [math]m^2[/math] must be |
62% |
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PS-af31fk |
An auction house charges a commission of 15 percent on the first $50,000 of the sale price of an item, plus 10 percent on the amount of the sale price in excess of $50,000. What was the sale price ... |
83% |
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DS-871y6k |
If |n+5|= 5, what is the value of n?[br/](1)n^2 is not equal to 0.[br/](2)n^2 + 10n = 0 |
85% |
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DS-0637nk |
In City X last April, was the average (arithmetic mean) daily high temperature greater than the median daily high temperature?[br/](1) In City X last April, the sum of the 30 daily high temperature... |
81% |
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DS-b12aak |
In the xy-plane, the line with equation ax + by + c = 0, where [math]abc != 0[/math], has slope [math]2/3[/math]. What is the value of b ?[br/](1)a = 4[br/](2)c = -6 |
92% |
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DS-8728jk |
[img]DS11136.jpg[/img][br/]What is the circumference of the circle above with center 0 ?[br/](1)The perimeter of △OXZ is 20 + [math]10sqrt2[/math][br/](2)The length of arc XYZ is 5π. |
90% |
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PS-d52u3k |
A certain company sold 800 units of its product for $8 each and 1,000 units of its product for $5 each. If the company's cost of producing each unit of its product was $6, what was the company's pr... |
94% |
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DS-bd27ek |
A certain salesperson's weekly salary is equal to a fixed base salary plus a commission that is directly proportional to the number of items sold during the week. If 50 items are sold this week, wh... |
91% |
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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-6820pk |
If an automobile averaged 22.5 miles per gallon of gasoline, approximately how many kilometers per liter of gasoline did the automobile average? (1 mile = 1.6 kilometers and 1 gallon = 3.8 liters, ... |
86% |
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PS-e02dnk |
At least [math]2/3[/math] of the 40 members of a committee must vote in favor of a resolution for it to pass. What is the greatest number of members who could vote against the resolution and still ... |
89% |
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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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PS-df2iwk |
If n is a prime number greater than 3, what is the remainder when [math]n^2[/math] is divided by 12 ? |
94% |
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PS-63217k |
[img]0601.jpg[/img][br/]According to the table above, what was the total number of watts of electricity used for the four appliances in the household on May 1? |
94% |
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TN模考试题18
