GRE考满分·题库

搜索

GRE考满分·题库

搜索
科目分类：
全部 填空和等价 阅读和逻辑 数学
书籍分类：
全部 图表题专项练习 比大小题专项练习 分难度套题练习 GRE数学6000题170逐考点专项练习 GRE数学170超高频“脏”题 GRE数学170超高频“坑”题 GRE数学170超高频“神”题
展开全部

题目列表

题目内容
$$1+2+3+......+n$$=$$\frac{n(n+1)}{2}$$

For each integer $$n$$ greater than 1, the sum of the first $$n$$ positive integers is given by the formula shown.

If the average (arithmetic mean) of the first $$n$$ positive integers is $$k$$, what is the sum of the first $$n$$ positive integers in terms of $$k$$?


The figure above represents the floor plan of a basement in which all the walls meet at right angles. The measurements shown in the floor plan, including the two sides of length x, are in centimeters. The floor plan is drawn using a scale of 1 centimeter to 1.5 meters. If the perimeter of the floor is 39.4 centimeters, approximately what is the area, in square meters, of the basement floor?
A box contains 6 cards, numbered 1, 2, 3, 4, 5, and 6, respectively. If one of the 6 cards is to be selected at random, what is the probability that the number on the card selected will be greater than 3 or even or both?
The author would most likely agree with which statement about the "scarcity of archival sources”?
The author suggests that the “theoretical preoccupations of the 1990s" were
The author explains the “subordination” by discussing which of the following earlier in the passage?
$$rs^{4}t^{3} \lt 0$$

Quantity A

$$\frac{r}{t}$$

Quantity B

$$0$$

Quantity A

$$(5^{5})(7^{7})$$

Quantity B

$$((5)(7))^{5+7}$$
f(n)=$$\frac{2}{n}-\frac{2}{n+1}$$

Quantity A

f(5,943)

Quantity B

f(5,944)
|x-2| > y

Quantity A

|x|

Quantity B

y


Quantity A

The area of triangular region XYZ

Quantity B

The area of triangular region KLM
In a club composed of 30 members, $$\frac{2}{5}$$ of the members are older than 24 years and $$\frac{5}{6}$$ of the members are right-handed.

Quantity A

The number of members in the club who are older than 24 years and right-handed

Quantity B

10
$$x^{2}-y^{2}=-10$$

Quantity A

x+y

Quantity B

x-y
The volume of a red container is $$3$$ times the volume of a green container. What fraction of the green container is equal to $$\frac{1}{12}$$ of the volume of the red container?
Which of the following is equal to $$(3x^{2}+5x-4)-2(x^{2}+2x+1)$$ for all values of x?
What is the measure of an interior angle of a regular polygon with 5 sides?


As part of a study, a restaurant recorded the number of people for each reservation at the restaurant last Saturday. The table above shows a frequency distribution of the results. What is the range of the numbers of people per reservation?

_____people per reservation

共收录：

25000 +道题目

7本备考书籍

最新提问