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题目内容
0 < x < 1

-1 < y < 0

Which of the following must be true?

Indicate all such statements.
The product of five consecutive integers is not 0.

Which of the following statements individually provide(s) sufficient additional information to determine all these integers are negative?

Indicate all such statements.
n=1234567891011.........499500

The digits of the integer m above are the digits of the integers from 1 to 500 written in consecutive order. How many digits does n have?
List L consists of an odd number of consecutive integers. The median of the integers in L is 3. Which of the following statements must be true?

Indicate all such statements.
q, r and s are consecutive positive integers and q < r < s.

Quantity A

$$\frac{qs}{r}$$

Quantity B

r-$$\frac{1}{r}$$


If x=2y+1, and y=2w, where w, x, and y are integers, which of the following must be an odd integer?
(r+u)(s+t)=odd, (r+u+s)(u+s+t)=odd.

Which of the following must be true?
If x+y=8x+22, then which of the following statements must be true?

Indicate all such statements.
If x, y and z are consecutive positive integers and if x+y+z is even, how many of the four integers xy, yz, zx, and xyz are even?
Among all the positive integers in 1-100(inclusive).

Quantity A

The number of the odd integers that are perfect square

Quantity B

The number of the even integers that are perfect square


Which of the following statements are true for all integers a and b?

Indicate all such statements.
If x, y and z are consecutive positive integers and if x+y+z is even, how many of the four integers xy, yz, zx, and xyz are even?
x < 0

Quantity A

$$(x^{-1})^{-3}$$

Quantity B

$$x^{-4}$$


Quantity A

$$(-7)^{52}$$

Quantity B

$$(-7)^{81}$$


If -x < y < 0, which of the following statements is true about the three quantities $$(x+y)^{2}$$, $$y^{2}$$ - $$x^{2}$$, and $$x^{2}$$ - $$y^{2}$$ ?

Quantity A

$$(24-25)^{50}$$

Quantity B

$$(77-76)^{-1}$$


x and y are consecutive positive integers (x < y)

Quantity A

$$(-3)^{(x)^{2}}$$

Quantity B

$$(-3)^{(y)^{2}}$$


n is an integer

Quantity A

$$\frac{(-1)^{11n+7}}{(-1)^{5n-2}}$$

Quantity B

-1


The median of n consecutive odd integers is 0

Quantity A

The sum of these n integers

Quantity B

The sum of the least and the greatest number


If the least of 19 consecutive even integers is -14, then what is the median of these integers?

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