展开全部

题目列表

题目内容
a, b, c, d, e, f, g, h, i, j

Let S be the set of all 10-letter sequences consisting of the 10 letters above.

Let T be the set of all 8-letter sequences consisting of the first 8 letters above.

Quantity A

The number of sequences in S in which f, b, h, and g appear consecutively in that order

Quantity B

The number of sequences in T in which f and b appear consecutively in that order




$$r$$, $$s$$, and $$t$$ are number on the number line above.

Quantity A

$$\frac{rs}{t}$$

Quantity B

$$rst$$




Quantity A

$$x$$

Quantity B

$$90$$


A 100-dollar bill is exchanged at a bank for bills in denominations of 5, 10, and 20 dollars. If each of the three types of bills is received, what is the least number of bills that could be received?
Which of the following lists of numbers has the greatest standard deviation?
The cast of a certain play has 2 male characters and 2 female characters. The director of the play will select the 2 male characters from 6 male actors and the 2 female characters from 8 female actors. How many different sets of 4 actors, consisting of 2 male actors and 2 female actors, are there that can be selected by the director?
How many different five-digit positive integers can be formed in which each of the digits 1, 2, 3, 6, and 7 is used exactly once?
In a group of 10 people, exactly 4 are vegetarians. A committee of 3 will be formed by randomly selecting 3 people from the group. How many of the possible 3-member committees would include exactly 2 vegetarian members?
Three 16-ounce bottles, M, R,and S, are filled with three different beverages. The amount of sugar contained in bottle M is $$\frac{1}{4}$$ of the amount of sugar contained in bottle R and is $$\frac{2}{5}$$ of the amount of sugar contained in bottle S. The amount of sugar contained in bottles R and S combined is what fraction of the amount of sugar contained in bottle R?


In the figure shown, triangle ABC is equilateral, and arc AEC is a circular arc with center B.

Quantity A

The length of line segment AC

Quantity B

The length of line segment BE


The average (arithmetic mean) of the six numbers $$y_1, y_2, y_3, y_4, y_5$$, and $$y_6$$ is $$k$$. The average of the six numbers $$y_1+k, y_2+k, y_3+k, y_4+k, y_5+k$$, and $$y_6+k$$ is $$m$$.

Quantity A

$$k$$

Quantity B

$$m$$




According to the data in the table, what percent of the children had access to a computer either at home, at school, or both?
Which of the following is equivalent to $$36^{-1}$$?
On a scaled map, the point for the geographical center of City A is 4 inches from the point for the geographical center of City B, and the point for the geographical center of City B is 2 inches from the point for the geographical center of City C. The actual distance from the geographical center of City A to the geographical center of City B is 500 miles. Which of the following values could be the actual distance, in miles, from the geographical center of City A to the geographical center of City C?

Indicate all such values.
A restaurant has a total of 16 tables, each of which can seat a maximum of 4 people. If 50 people were sitting at the tables in the restaurant, with no tables empty, what is the greatest possible number of tables that could be occupied by just 1 person?

Quantity A

The area of the region enclosed by the polygon

Quantity B

$$42x$$


Last month a certain contractor received $350,000 for each home in a group of 8 homes sold. Additionally the contractor received a total of $2,150,000 for all 7 homes sold in another group of homes. For the 15 homes sold how much less was the average (arithmetic mean) selling price than the median selling price?
A right circular cylindrical tank sitting on its base has a height of 6 feet and a volume of 54π cubic feet. What is the circumference, in feet, of the tank's base?
The standard deviation of $$x$$, $$y$$, and $$z$$ is $$d$$.

Quantity A

The standard deviation of $$x+1$$, $$y+1$$, and $$z+1$$

Quantity B

$$d+1$$


$$\sqrt{y^2}=8$$

Quantity A

$$3^{2y}$$

Quantity B

$$3^{-2y}$$


共收录:

25000 +道题目

236本备考书籍

最新提问