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题目内容
The top surface of a certain 1-inch-thick oak board is 8 inches wide and has an area of 960 square inches. What is the price of this board? (1 foot=12 inches)
For the 6-inch-wide boards listed, which of the following is closest to the ratio of the price per linear foot of the least expensive type of board to the price per linear foot of the most expensive type of board?
The price of one maple board that is 8 inches wide and n feet long is $1.50 less than the price of 2 maple boards that are each 4 inches wide and n feet long. What is the value of n?
For the programming languages shown, the ratio of the greatest number of job postings in 2018 to the least number of job postings in 2018 was closest to which of the following?
For 2017, let M be the median number of job postings for the programming languages shown and let P be the median number of job postings for the programming languages shown except for PHP. What is the value of P-M?
If the numbers of job postings for each language and year except Java in 2018 were as shown, and if the range of the numbers of job postings for 2018 had been equal to that for 2017 instead of what it actually was, what would have been the number of job postings for Java in 2018?

_____thousand
The average (arithmetic mean) of a, b, c and d is 7, and 2(a+b+c)=b+c+d. What is the average of the seven numbers a, a, a, b, b, c and c?
The average (arithmetic mean) of n numbers is 26. One number is discarded, and the average of the remaining numbers is 25.5.

Quantity A

The discarded number

Quantity B

26
The median of the five measurements in set X is 65 and the median of the five measurements in set Y is 75. All ten measurements in sets X and Y are between 60 and 80.

Quantity A

The median of the ten measurements in sets X and Y combined

Quantity B

70

Quantity A

The median number of days per month for a year in which February has 28 days

Quantity B

The median number of days per month for a year in which February has 29 days
Q is a set of 36 different numbers with the property that if p is in Q, then -p is also in Q. The number 25 is in Q.

Quantity A

The range of the numbers in Q

Quantity B

40
Set M is composed of all 3-digit positive multiples of 7. What is the range of the numbers in set M?
The standard deviation of the five values 2, 4, 6, 8, 10 is σ. For which of the following lists is the standard deviation of the values in the list equal to σ?

Indicate all such lists.
List T consists of 6 different numbers, and the average (arithmetic mean) of the numbers in T is less than the median of the numbers in T. The average of the 4 least numbers in T is 6, and the average of the 4 greatest numbers in T is 13.

Quantity A

The median of the 6 numbers in T

Quantity B

9.5

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