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题目内容
The number of C in set I is what percent greater than the number of C in set II?
Give your answer to the nearest 0.1 percent.
____%
The number of sales covered by 40% region is what percent greater than the number of sales covered by 35% regions?
Give your answer to the nearest 0.1 percent.
______%
x[(y+75)+(15-y)]=900

Quantity A: x*y

Quantity B: 10
$$\frac{x+1}{x}$$=10

Quantity A

$$(x+1)^{2}$$

Quantity B

12


What is the central angle of the region covered by 25%?
-2 < x < 0

Quantity A

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

Quantity B

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


Set S contains 7 numbers: 10, 20, 30, x, 50, 60, 70.

Quantity A

The mean of the 7 numbers

Quantity B

x


2 < x < 5, $$\frac{1}{10}$$ < y < $$\frac{1}{5}$$

Quantity A

x+y

Quantity B

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


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


m, n and p are all larger than 0 but smaller than 1.

Quantity A

m+np

Quantity B

(m+n)p


1 < x < 2

Quantity A: $$\frac{1}{x}$$+$$\frac{2}{x}$$+ $$\frac{3}{x}$$

Quantity B: x +$$\frac{x}{2}$$+ $$\frac{x}{3}$$
xy < x+y

Quantity A

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

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.
$$r^{3}$$-r=r-$$r^{3}$$

Quantity A

r

Quantity B

0


Both m and n are negative integers and m < n

Quantity A

7+$$10^{m}$$

Quantity B

5+$$10^{n}$$


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