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Rodrigo's locker number has 3 different digits, the sum of which is 12. The sum of any two digits in the number is less than 10, and the digits are in decreasing order from left to right. What is Rodrigo's locker number?
The 20 people at a party are divided into n mutually exclusive groups in such a way that the number of people in any group does not exceed the number in any other group by more than 1.

Quantity A

The value of n if at least one of the groups consists of 3 people

Quantity B

6


x and m are positive integers, x is odd, and $$x·2^{m}$$=160

Quantity A

x

Quantity B

m


The mean of four different integers is 32, while the least of them is 27. The largest possible integer among the list is?
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 > 0, x$$y^{2}$$ < 0

Quantity A

x

Quantity B

y


If $$-1 < y < 0$$, what is the relationship between $$y$$, $$y^{2}$$, $$y^{3}$$, and $$y^{4}$$?
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


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