#### 题目列表

In year Y, the ratio of the number of Internet users per 1,000 people in Finland to the number of Internet users per 1,000 people in Japan was closest to which of the following?

In the figure above, a quadrilateral is inscribed in a circle. Line segment AC (not shown) is a diameter of the circle. What is the value of x+y?

x+y=_____ If k is the sum of three consecutive odd integers x, y, and z, where x < y < z, what is the sum of the three consecutive odd integers that immediately follow z?
If n is a positive integer, which of the following CANNOT be the units digit of $2^{n}-1$?
Square ABCD is inscribed in a circle of radius 3.

#### Quantity A

The area of square region ABCD

#### Quantity B

20

Six more than $\frac{1}{2}$ of the number r equals to 14.

Three fewer than the square root of the number w equals 1.

r

#### Quantity B

w

ABCD is a rectangle.

#### Quantity A

The combined areas of the triangular regions ABE and ECD

#### Quantity B

The area of triangular region AED a and b are consecutive positive integers and a is less than b.

#### Quantity A

$a^{b}$

#### Quantity B

$b^{a}$

x, y, and z are consecutive odd integers.

x+y+z

#### Quantity B

xyz

The average (arithmetic mean) of the six numbers a, b, c, d, e, and f is x. The average of c, d, e, and f is also x.

a+b

#### Quantity B

2x

A certain device is a rectangular box with dimensions 20 inches by 5 inches by 6 inches. If the device has mass 17 kilograms, then the device`s density is approximately how many kilograms per cubic foot? (Density is the ratio of mass to volume, and 1 foot=12 inches.)
Machine X, working at a constant rate, can perform a job in T hours. Machine Y, working at a different constant rate, can perform the same job in 3T hours. If the two machines work simultaneously at their respective constant rates, how many hours will it take for the machines to perform the job, in terms of T?
For a list of 10 different numbers, the average (arithmetic mean) of the numbers is 22 and the range is 50. If both the least number and the greatest number are removed from the list, then the average of the remaining numbers is 20. What is the greatest number in the list of 10 numbers?
A circular walkway with a uniform width and an inner diameter of 60 feet is to be built. If the length of the outer edge of the walkway must be between 100π feet and 200π feet, which of the following values could be the width, in feet, of the walkway?

Indicate all such values.
Which student wrote the longest articles as measured by the average (arithmetic mean) number of words per article?
The greatest number of words read by a student exceeded the least number of words read by a student by approximately what percent?
Of all the articles read, students C, D, and E read the same 2 articles. In addition to these 2 articles, C and D read the same 10 articles, C and E read the same 5 articles, and D and E read the same 7 articles. How many articles were read by at least one of the three students, C, D, and E?
-4 < x < 2 and -2 < x < 4

|x|

#### Quantity B

2

$\frac{y}{x}=\frac{y}{x}$

x

#### Quantity B

y

Terry deposits a total of $400 in two different accounts. One account pays 3 percent annual interest and the other pays 5 percent annual interest. The total yearly interest on these investments is$16.

#### Quantity A

The amount of money that is invested in the account that pays 3 percent annual interest

#### Quantity B

The amount of money that is invested in the account that pays 5 percent annual interest

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