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题目内容
A jar contains 12 marbles. Each is either yellow or green and there are twice as many yellow marbles as green marbles. If two marbles are to be selected from the jar at random, what is the probability that exactly one of each color is selected?
A set of 10 points lie in a plane such that no three points are collinear.

Quantity A

The number of distinct triangles that can be created from the set

Quantity B

The number of distinct quadrilaterals that can be created from the set
$$\frac{0.05}{0.6}=\frac{x}{0.18}$$

Quantity A

x

Quantity B

0.015
$$x\neq0$$

Quantity A

$$\frac{x}{10}$$

Quantity B

$$\frac{x}{5}\over{2}$$
The test scores for a class have a normal distribution, a mean of 50, and a standard deviation of 4.

Quantity A

Percentage of scores at or above 58

Quantity B

Percentage of scores at or below 42


The line$$ y =-\frac{5}{6}x+ 1$$ is graphed on the rectangular coordinate axes.

Quantity A

OR

Quantity B

OP


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At a dog show, there are 20 judges and 10 dogs in the final round.

Quantity A

The number of distinct pairs of judges

Quantity B

The number of possible rankings of dogs from first to third place
k > 0

l > 1

Quantity A

$${1}\over{\frac{1}{k}+\frac{1}{l}}$$

Quantity B

$${1}\over{(k)(\frac{1}{k})+\frac{1}{l}}$$

Quantity A

$$\sqrt{3}+\sqrt{4}$$

Quantity B

$$\\sqrt{7}$$
Joe has $200. If he buys a CD player for $150, what is the greatest number of CDs he can buy with the remaining money if CDs cost $12 each?

_____
What is the area of triangle ABC in the figure above? GRE、gre题库、gre模考、gre考满分
Which of the following could equal 10(32 – 2) divided by a positive integer?

Indicate all possible values.
Roberta drove 50 miles in 2 hours. Her rate in miles per hour is equivalent to which of the following proportions?

Indicateallpossible values.
If |2x – 3| + 2 > 7, which of the following could be the value of x ?

Indicateallpossible values.
If x, y, and z are consecutive odd integers where x < y < z and x + y + z < z, then whch of the following could be the value of x ?

Indicate all possible values.
If $$4^{x}=1024$$,then $$(4^{x+1})(5^{x-1})=$$
What is the greatest distance between two vertices of a rectangular solid with a height of 5, a length of 12, and a volume of 780?
Six children, three boys and three girls, sit in a row on a park bench. How many arrangements of children are possible if no boy can sit on either end of the bench?

Indicate all possible values.
If 16 is the average of p, 24, and q, what is 16(p + q) ?
ABCD is a rectangle.

Quantity A

s

Quantity B

t


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