| 题号 |
题目内容 |
平均正确率 |
操作 |
DS-aa2p6k |
A train traveled from station X to station Y at a constant speed of 88 feet per second. Is the distance that the train traveled from station X to Station Y greater than 40 miles? (1 mile = 5,280 fe... |
80% |
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PS-d22wdk |
For any number x, [ x ] denotes the greatest integer less than or equal to x. What is the value of [ [math]-(10)/(4)[/math] ]? |
87% |
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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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PS-672czk |
If a 10 percent deposit that has been paid towerd the purchase of a certain product is $110, how much more remains to be paid? |
86% |
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PS-a62gdk |
In a certain company, the ratio of the number of managers to the number of production-line workers s 5 to 72. If 8 additional production-line workers were to be hired, the ratio of the number of ,m... |
93% |
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DS-a21tyk |
In the xy-plane, what is the slope of line l?[br/](1)Line l dose not intersect the line with equation y = 1 - x.[br/](2)Line l intersects the line with equation y = x - 1. |
81% |
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DS-762zzk |
What is the remainder when the positive integer n is divided by 6 ?[br/](1)n is a multiple of 5.[br/](2)n is a multiple of 12.
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91% |
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PS-103r1k |
For any numbers x and y, x◇y = 2x - y - xy. If x◇y = 0, then which of the following CANNOT be y? |
86% |
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DS-2130ak |
Is x to the right of -5 on the number line?[br/](1)x is to the right of -7 on the number line.[br/](2)x is between -4 and -3 on the number line.
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90% |
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PS-5e2v6k |
John makes wooden bowls and sells each bowl at a price that consists of his cost of making the bowl and a markup amount that is 25 percent of the selling price. What is the selling price of a bowl ... |
78% |
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DS-112qok |
What is the value of [math](2x–5)^3[/math] ?[br/](1) [math](2x)^3=216[/math][br/](2) [math](2x+3)^2=81[/math]
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81% |
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PS-ac2hak |
A certain bakery has 6 employees. It pays annual salaries of $14,000 to each of 2 employees, $16,000 to 1 employee, and $17,000 to each of the remaining 3 employees. The average (arithmetic mean) a... |
89% |
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PS-e82fzk |
A tank contains 10,000 gallons of a solution that is 5 percent sodium chloride by volume. If 2,500 gallons of water evaporate from the tank, the remaining solution will be approximately what percen... |
79% |
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DS-2d2bjk |
The hypotenuse of a right triangle is 10 cm. What is the perimeter, in centimeters, of the triangle?[br/](1)The area of the triangle is 25 square centimeters.[br/](2)The 2 legs of the triangle are ... |
69% |
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DS-ed33fk |
The number of seats in the first row of an auditorium is 18 and the number of seats in each row thereafter is 2 more than in the previous row. What is the total number of seats in the rows of the ... |
94% |
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DS-fc1v3k |
Of the cans of peaches inspected yesterday at a certain plant, 1.5 percent failed to pass inspection. Of the cans that failed inspection, [math]5/6[/math] were incorrectly labeled and the rest were... |
91% |
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DS-031tqk |
If x and y are positive, is [math]x^3 ＞ y[/math]?[br/](1)[math]sqrt x ＞ y[/math][br/](2)x ＞ y |
69% |
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DS-e02q2k |
For any positive integer x, the 2-height of x is defined to be the greatest nonnegative integer n such that [math]2^n[/math] is a factor of x. If k and m are positive integers, is the 2-height of k... |
58% |
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DS-d92v0k |
If n is an integer between 10 and 99, is n ＜ 80 ?[br/](1) The sum of the two digits of n is a prime number.[br/](2) Each of the two digits of n is a prime number. |
82% |
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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-902kek |
Which of the following is equivalent to the pair of inequalities x + 6＞10 and x-3≤5 |
97% |
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PS-272cmk |
If [math]1.5/(0.2+x)[/math]=5,then x= |
95% |
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PS-533r0k |
A circular table has a glass center with a diameter of 4x inches, which is surrounded by a metal ring with a width of 2 inches. In terms of x, what fraction of the table's surface is made up by the... |
77% |
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PS-382urk |
Departments A, B, and C have 10 employees each, and department D has 20 employees. Departments A, B, C, and D have no employees in common. A task force is to be formed by selecting 1 employee from ... |
90% |
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PS-e31zdk |
If [math]xy != 0[/math] and [math]x^2y^2 - xy = 6[/math], which of the following could be y in terms of x?[br/]I.[math]1/(2x)[/math][br/]II.[math]-2/x[/math][br/]III [math]3/x[/math] |
90% |
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PS-5c2f5k |
It would take one machine 4 hours to complete a large production order and another machine 3 hours to complete the same order. How many hours would it take both machines, working simultaneously at ... |
92% |
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DS-b525bk |
Is x a negative number?[br/](1)9x ＞ lOx[br/](2)x + 3 is positive. |
94% |
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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-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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DS-b51xik |
If the product of the digits of the two-digit positive integer n is 2, what is the value of n ?[br/](1)n is odd.[br/](2)n is greater than 20. |
88% |
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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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PS-4223hk |
If each of the 12 teams participating in a certain tournament plays exactly one game with each of the other teams, how many games will be played? |
84% |
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PS-1b3r2k |
In a certain shipment of T-shirts, 20 percent are red. Of those shirts, 30 percent are size small. If there are 366 red, small T-shirts, how many T-shirts in total were in the original shipment? |
89% |
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PS-f734ek |
On a certain day, orangeade was made by mixing a certain amount of orange juice with an equal amount of water. On the next day, orangeade was made by mixing the same amount of orange juice with tw... |
71% |
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DS-392zpk |
How many of the students in a certain class are taking both a history and a science course?[br/](1) Of all the students in the class, 50 are taking a history course.[br/](2) Of all the students in ... |
96% |
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PS-193qzk |
Note: Figure not drawn to scale.[br/]A rectangular yard (white area) is surrounded by a hedge (shaded region) with a length of 15 meters and a width of 12 meters, as shown in the figure above. The ... |
72% |
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DS-c233vk |
If r and s are positive integers, can the fraction r/s be expressed as a decimal with only a finite number of nonzero digits?[br/](1) s is a factor of 100[br/](2) r is a factor of 100
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64% |
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TN模考试题16
