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题目内容
In a list of ten positive integers, the same number could appear at most twice. If the sum of them is 101, then what is the greatest possible number in the list?
If N is an integer and 99 < $$N^{2}$$ < 200, then N could have at most how many values?
$$x^{2}y \gt 0$$, $$xy^{2}$$ \lt 0$$

Quantity A

$$x$$

Quantity B

$$y$$
If $$-1 \lt y \lt 0$$, which of the following must be true?
If a < b < 0, which of the following numbers must be positive?

Indicate all such numbers.
When selecting four different integers from -5 to 4, inclusive, what is the least possible product of these four integers?
r and t are consecutive integers and p=$$r^{2}$$+t

Quantity A

$$(-1)^{p}$$

Quantity B

-1
What is the sum of all the possible different 3-digit positive integers that can be formed using each of the digits 7, 8, and 9, without repetition?
The sum of three or more consecutive integers CANNOT be?

Quantity A

The number of two-digit positive integers for which the units digit is not equal to the tens digit

Quantity B

80
N=11121314................50

The integer N is formed by writing the consecutive integers from 11 through 50, from left to right.

Quantity A

The $$26^{th}$$ digit of N from left to right

Quantity B

The $$45^{th}$$ digit of N from left to right
A person counts positive integers from 1 to X. Which of the following statements could determine X?

Indicate all that is/are true.
If the sum of 11 consecutive integers is 22, then what's the least of the list of numbers?
The sum of a set of n consecutive integers is 30

Quantity A: n

Quantity B: 4
List L consists of k consecutive integers, where k is an odd integer. The median of the integers in L is m. Which of the following statements must be true?

Indicate all that is/are true.

Quantity A

Product of even integers from -12 to 6 inclusive

Quantity B

Product of odd integers from -5 to 13 inclusive
Quantity A: The positive difference between the sum of all the even integers and the sum of all the odd integers from 1 to 50, inclusive

Quantity B: 25
If both $$a$$ and $$b$$ are positive odd integers, which of the following could be the units digit of the sum $$ab+1$$?

Indicate all such numbers.
Integer a is 125 more than integer b. Which of the following statement(s) must be true?

Indicate all such statements.
$$x$$ and $$y$$ are integers, $$0 \lt x \lt y$$, and $$x^{2}+y^{2} $$ is even. Which of the following integers must be even?

Indicate all that are true.

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