来源：

题目： x, y, and z are consecutive integers, and x < y < z. What is the average of x, y, and z?(1) x = 11(2) The average of y and z is 12.5.

来源：

题目： A sales associate earns a commission of 8% on her first $10,000 in sales revenue in a given week and a commission of 10% on any additional sales revenue that the associate generates that week. How much sales revenue did the associate generate last week?(1) The sales associate earned a total of $1,500 in commission last week. (2) Last week, the sales associate was eligible for the 10% commission rate on $7,000 of additional sales.

来源：

题目： What is the value of x? (1) x + 2y = 4(2) 5x + y + 15 = 3x – 3y + 23

来源：

题目： All of the furniture for sale at Al's Discount Furniture is offered for less than the manufacturer's suggested retail price (MSRP). Once a year, Al's holds a clearance sale. If Jamie purchased a certain desk during the sale, did she get a discount of more than 50% of Al's regular price for the desk? (1) Al's regular price for the desk is less than 60% of the MSRP of $2,000. (2) The sale price was $600 less than Al's regular price for the desk.

来源：

题目： If x is an integer, what is the value of x?(1) 2x – 3 < 5(2) -4x < -8

来源：

题目： A mixture of oil, water, and vinegar contains 10% oil. After all of the water evaporates, what percent of the mixture is oil? (1) Before the water evaporated, the mixture exactly filled a one liter bottle. (2) Before the water evaporated, vinegar accounted for forty percent of the mixture.

来源：

题目： Is x a multiple of 4? (1) x + 2 is divisible by 2 (2) 6 is a factor of 3x

来源：

题目： What is the distance between Harry's home and his office? (1) Harry's average speed on his commute to work this Monday was 30 miles per hour. (2) If Harry's average speed on his commute to work this Monday had been twice as fast, his trip would have been 15 minutes shorter.

来源：

题目： What percent of the students at Jefferson High School study French but not Spanish? (1) 30% of all students at Jefferson High School study French. (2) 40% of all students at Jefferson High School do not study Spanish.

来源：

题目： What is the value of $$3^{x-y}$$ ? (1) $$3^{x+1} = 243$$ (2) $$3^{y–1} = 27$$

来源：

题目： If x and y are positive integers, is (x + y) a prime number?(1) x = 1(2) y = 2 * 3 * 5 * 7

来源：

题目： On Sunday morning, a printing press printed its newspapers at a constant rate from 1:00 AM to 4:00 AM. How many newspapers did the printing press print on Sunday morning? (1) The printing rate on Saturday morning was twice that of Sunday morning. (2) On Saturday morning, the printing press ran at a constant rate from 1:00 AM to 3:00 AM, stopped for a half hour, and then ran at the same constant rate from 3:30 AM to 5:30 AM, printing a total of 4,000 newspapers.

来源：

题目： If BD = CD, what is the degree measure of x + y?(1) v = 74 degrees(2) w = 32 degrees

来源：

题目： If none of the students are ambidextrous, what percentage of the 20 students in Mr. Henderson's class are left-handed? (1) Of the 12 girls in the class, 25% are left-handed. (2) 5 of the boys in the class are right-handed.

来源：

题目： If X is the average of Y numbers, what is Y? (1) X = 54.5 (2) The sum of the Y numbers for which X is the average is 2,616.