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题目内容
a, b, c, d, e, f, g, h, i, j

Let S be the set of all 10-letter sequences consisting of the 10 letters above.

Let T be the set of all 8-letter sequences consisting of the first 8 letters above.

Quantity A

The number of sequences in S in which f, b, h, and g appear consecutively in that order

Quantity B

The number of sequences in T in which f and b appear consecutively in that order


Data set Q contains 10,000 values. The median of the values is equal to the third quartile of the values.

Quantity A

The 60th percentile of the values in Q

Quantity B

The 70th percentile of the values in Q


A total of $84,000 was invested for one month in a new money market account that paid simple annual interest at the rate of r percent. If the investment earned $420 in interest for the month, what is the value of r?
A certain company has 50 printers that print at the same constant rate. Working continuously and simultaneously at that rate, it takes 9 of the printers 5 hours to complete print job A. Working continuously and simultaneously at that rate, it takes n of the printers 3 hours to complete print job A.

Quantity A

n

Quantity B

16


k is an odd positive integer.

Quantity A

The median of the first k even positive integers

Quantity B

The median of the first 2k+1 positive integers




Quantity A

x

Quantity B

90


$$N$$ is a two-digit integer. The units digit of $$N^2$$ is 9.

Quantity A

The units digit of N

Quantity B

6




To the nearest billion dollars, what was the median of the amounts of advertising expenses in the five television markets?
a < b

Quantity A

a-b

Quantity B

|a-b|


A number is to be randomly selected from the set of prime numbers that are less than 50. What is the probability that the number selected will be greater than 29?
Points P, Q, R, and S are consecutive vertices of a square in the xy-plane,where the coordinates of P are(2, 2).

Which of the following statements individually provide(s) sufficient additional information to determine the area of the square?

Indicate all such statements.


The figure shows two identical right circuiar cones of radius $$r$$ and height $$h$$ inside a right circular cylinder of radius $$r$$ and height $$2h$$. What is the volume of the region inside the cylinder but outside the two cones? (Note: The volume $$V$$ of a right circular cone is given by $$V=\frac{1}{3}πr^2h$$, where $$r$$ is the radius of the base and $$h$$ is the height of the cone.)
k > 2

Quantity A

$$1+\frac{2}{k}+\frac{3}{k^2}$$

Quantity B

3


x > 0 and y < 0

Quantity A

x+y

Quantity B

x-y


r > 0

Quantity A

$$\frac{r}{r^2+1}$$

Quantity B

$$\frac{1}{r}$$


Set H consists of all the positive factors of 90. Set F consists of all the multiples of 5 that are between 1 and 99.

Quantity A

The number of integers in the set H ∩ F

Quantity B

6


k is a positive integer.

Quantity A

The number of prime numbers from k to k+10

Quantity B

The number of prime numbers from k+10 to k+20


The circumferences of the three concentric circles P, Q, and R are 3π, 5π, and 6π, respectively.

Quantity A

The area of the region between P and Q

Quantity B

The area of the region between Q and R


Quantity A

The area of a right triangle with hpotenuse of length c and a leg of length a

Quantity B

The area of a right triangle with hpotenuse of length c and a leg of length 2a


At a local movie theater, a family consisting of 2 adults and 4 children are going to sit in a row of 6 seats such that one person will sit in each seat. One adult will sit at each end of the row, with each child in a seat between the adults. How many different seating arrangements are possible for the family?

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