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题目内容
List M: $$10, 20, 30, x, 50, 60, 70$$ The median of the $$7$$ integers in list M is $$x$$.

Quantity A

The average (arithmetic mean) of the $$7$$ integers in list M

Quantity B

$$x$$
$$2 \lt x \lt 5$$

$$\frac{1}{10} \lt y \lt \frac{1}{5}$$

Quantity A

$$\frac{1}{x}$$+$$\frac{1}{y}$$

Quantity B

$$x+y$$
x+y > y, x-y < x

Quantity A: x

Quantity B: y
a < b < 0

Quantity A

ab

Quantity B

b-a
0 < s < t

Quantity A

6s

Quantity B

5t
Each of the numbers m, n, and p is greater than 0 and less than 1..

Quantity A

m(n+p)

Quantity B

mn+p
1 < x < 2

Quantity A

$$\frac{1}{x}$$+$$\frac{2}{x}$$+ $$\frac{3}{x}$$

Quantity B

x +$$\frac{x}{2}$$+ $$\frac{x}{3}$$
The product of the positive numbers x and y is less than the sum of x and y.

Quantity A

The sum of the reciprocal of x and the reciprocal of y

Quantity B

1
0 < x < y < $$\frac{1}{2}$$, $$\frac{1}{2}$$ < r < t < 1

Quantity A

(x+y)(r+t)

Quantity B

r+t(x+y)
If 2x+y=5, then what is the value of ($$9^{x}$$)($$3^{y}$$)?
$$a=\frac{x}{x+y+z}$$ , $$b=\frac{y}{x+y+z}$$ , $$c=\frac{z}{x+y+z}$$


Quantity A

The average of a, b and c

Quantity B

$$\frac{1}{2}$$
y=$$2^{-r^{2}}$$, where r is a positive integer, which of the following could be the value of y?

Indicate all such values.
If a=$$(-\frac{1}{37})^{12}$$, which of the following equals to $$37^{-12}$$?
$$r^{3}$$-r=r-$$r^{3}$$

Quantity A

r

Quantity B

0
$$m$$ and $$v$$ are negative integers and $$m \lt v$$.

Quantity A

$$7+10^{m}$$

Quantity B

$$5+10^{v}$$
$$a \gt 0$$

$$x \neq 0$$

Quantity A

a$$x^{4}$$

Quantity B

$$(ax)^{4}$$
n is an integer

Quantity A

$$(\frac{1}{2})^{n}$$

Quantity B

$$(\frac{1}{3})^{n}$$
A number can be transformed into both a perfect square and a perfect cube. If its units digit is 5, and is less than 100,000, then the number must be?

Quantity A

$$\sqrt[3]{250}$$

Quantity B

6$$\sqrt[3]{2}$$
N family have 2 boys and 1 girl each, M family have 1 boy and 2 girls each. In total, there are 11 boys and 10 girls among these M+N family. What is the sum of N+M?

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