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题目内容
If a < b < 0, which of the following numbers must be positive? Indicate all such numbers.


What is the ratio of the number of people in group 2 with the ailment sneezing and itchy eyes to the total number of people in both groups with the ailment sneezing and itchy eyes?

Give your answer as a fraction. GRE、gre题库、gre模考、gre考满分
A student made a conjecture that for any integer n, the integer 4n + 3 is a prime number. Which of the following values of n could be used to disprove the student's conjecture? Indicate all such values.
Eight points are equally spaced on a circle. If 4 of the 8 points are to be chosen at random, what is the probability that a quadrilateral having the 4 points chosen as vertices will be a square?
Emma spent $75 buying a used bicycle and $27 repairing it. Then she sold the bicycle for 40 percent more than the total amount she spent buying and repairing it.

Quantity A

The price at which Emma sold the bicycle

Quantity B

$140
In the figure above, squares PQRV and VRST have sides of length 6.

Quantity A

The area of the shaded region(PST)

Quantity B

36


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In 2009 the property tax on each home in Town X was p percent of the assessed value of the home, where p is a constant. The property tax in 2009 on a home in Town X that had an assessed value of $125,000 was $2,500.

Quantity A

The property tax in 2009 on a home in Town X that had an assessed value of $160,000

Quantity B

$3,000
x + y = -1

Quantity A

x

Quantity B

y
r, s, and t are three consecutive odd integers such that r < s < t.

Quantity A

r + s + 1

Quantity B

s + t - 1

Quantity A

The slope of line k

Quantity B

The slope of line l


 GRE、gre题库、gre模考、gre考满分
In the figure above, what is the value of $$(x+y+z)\over45$$ GRE、gre题库、gre模考、gre考满分
A certain store sells two types of pens: one type for $2 per pen and the other type for $3 per pen. If a customer can spend up to $25 to buy pens at the store and there is no sales tax, what is the greatest number of pens the customer can buy?
If y = 3x and z = 2y, what is x + y + z in terms of x ?

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