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If c, d, and e are integers greater than 1 and cde=66, what is the value of c+d+e ?
An initial amount of 600 grams of a saltwater solution that was 5 percent salt, by mass, was reduced to 300 grams of solution by evaporating some of the water. If the amount of salt remained the same, then the resulting solution was what percent salt?
Approximately how many people were age 24 years or younger?
The median age of the population is in which of the four age-groups shown?
Which of the following information, if any, together with the information given, is sufficient to determine the average (arithmetic mean) age for the population?
John and Paul begin work at 8:00 in the morning and finish at 4:30 in the afternoon. John begins his first break of the day at 8:45 and his second break at 9:30, and he continues to take a break every 45 minutes throughout the day. Paul begins his first break at 9:00 and his second break at 10:00, and he continues to take a break every 60 minutes throughout the day. At which of the following times do John and Paul begin a break at the same time?

Indicate all such times.
In the xy-plane, a quadrilateral has vertices at (-9,-2), (-1,-2) ,(-1,-4) , and (-9,-4). What is the perimeter of the quadrilateral?
The total charge for a 4-week dance class is $55.00. The class has 3 sessions per week, and each session lasts 45 minutes. Approximately what is the charge per hour for the class?
If$$4^{x}=256$$ , what is the value of $$2^{2x-1}$$ ?

$$2^{2x-1}$$ =_____
S={2,7,9,10,11,15}

A number r is to be selected at random from set S.

Quantity A

The probability that the value of $$(-1)^{r^{2}}$$ will be 1

Quantity B

$$\frac{1}{2}$$


$$\frac{y}{8}=\frac{z}{16}$$

Quantity A

$$\frac{y+1}{4}$$

Quantity B

$$\frac{z+1}{8}$$


Quantity A

$$\frac{2}{\sqrt[3]{6}}+\frac{3}{\sqrt[3]{6}}$$

Quantity B

$$\frac{\sqrt[3]{6}}{2}+\frac{\sqrt[3]{6}}{3}$$


The length of each side of square PQRS is greater than 3. The radius of circle C is 3.

Quantity A

The area of square PQRS

Quantity B

The area of circle C




The ratio of PW to PR in rectangle PRSW is equal to the ratio of PQ to QT in rectangle PQTW.

Quantity A

x

Quantity B

20


GRE、gre题库、gre模考、gre考满分
For 1 year, Maria invested $10,000 at a simple annual interest rate of x percent and $8,000 at a simple annual interest rate of y percent, where$$x=\frac{3y}{4}$$and y>0.

Quantity A

The amount of interest earned on the $10,000 investment

Quantity B

The amount of interest earned on the $8,000 investment


The points (r,s) and (t,u) are in the xy-plane, where r, s, t, and u are all less than 0 and r≠t.

Quantity A

The slope of the line that passes through (r,s) and (t,u)

Quantity B

0


14.6, 12.6, 16.3, 16.2, 16.2, 17.8, 17.7, 16.0, 14.6, 12.6

The readings of the electric meter for a certain business for each of 10 months are listed above. What is the median of the readings?
When measured from sea level, the height of Mountain C is 40 percent of the height of Mountain D. If the height of Mountain C is greater than 800 meters, which of the following values could be the height, in meters, of Mountain D ?

Indicate all such values.
An empty box weighs 50 ounces. The box is to be packed with at least 98 units of a certain product but not more than 102 units. If each unit weighs 0.82 ounce and the packed box weighs w ounces, then w must satisfy which of the following inequalities?

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