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If each of the 8 employees working on a certain project received an award, was the amount of each award the same?(1)The standard deviation of the amounts of the 8 awards was 0.(2)The total amount of the 8 awards was $10,000.
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The total charge to rent a car for one day from Company J consists of a fixed charge of $15.00 plus a charge of $0.20 per mile driven. The total charge to rent a car for one day from Company K consists of a fixed charge of $20.00 plus a charge of $0.10 per mile driven. Is the total charge to rent a car from Company J for one day and drive it x miles less than $25.00 ?(1)The total charge to rent a car from Company K for one day and drive it x miles is less than $25.00.(2)x < 50
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Professor Vasquez gave a quiz to two classes. Was the range of scores for the first class equal to the range of scores for the second class?(1)In each class, the number of students taking the quiz was 26, and the lowest score in each class was 70.(2)In each class, the average (arithmetic mean) score on the quiz was 85.
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If xyz $$\neq 0$$, is $$x(y+z) \ge 0$$ ?(1)|y+z| = |y|+|z|(2)|x+y| = |x|+|y|
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If $$xy \neq 0$$, what is the value of $$\frac {25x^2} {y^2}$$?(1)$$x = 3$$(2)$$5x - 2y = 0$$
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Is the standard deviation of the salaries of Company Y's employees greater than the standard deviation of the salaries of Company Z's employees?(1)The average (arithmetic mean) salary of Company Y's employees is greater than the average salary of Company Z's employees.(2)The median salary of Company Y's employees is greater than the median salary of Company Z's employees.
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OG12
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What was the price at which a merchant sold a certain appliance?(1)The merchant's gross profit on the appliance was 20 percent of the price at which the merchant sold the appliance.(2)The price at which the merchant sold the appliance was $50 more than the merchant's cost of the appliance.
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 In the figure shown, line segment AD is parallel to line segment BC. What is the value of x?(1)y=50(2)z=40
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OG17
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If the units digit of the three-digit positive integer k is nonzero, what is the tens digit of k?(1)The tens digit of k + 9 is 3.(2)The tens digit of k + 4 is 2.
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What is the remainder when the positive integer n is divided by 2?(1)When n is divided by 5, the remainder is an odd integer.(2)When n is divided by 10, the remainder is an odd integer.
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What is the value of xy?(1)$${2}^{(x+y)}=4$$(2)$${2}^{(x+3y)}=16$$
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OG12 OG15 OG16 OG17 OG18 OG19 OG20 OG2022
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What is the median number of employees assigned per project for the projects at Company Z?(1)25 percent of the projects at Company Z have 4 or more employees assigned to each project.(2)35 percent of the projects at Company Z have 2 or fewer employees assigned to each project.
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How many liters of apple juice were added to the cranberry juice in a certain container?(1)The amount of apple juice that was added was $$\frac3 2$$ the amount of cranberry juice in the container.(2)There were 5 liters of cranberry juice in the container.
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OG12
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The product of the units digit, the tens digit, and the hundreds digit of the positive integer m is 96. What is the units digit of m?(1)m is odd.(2)The hundreds digit of m is 8.
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OG18-数学分册
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 What is the volume of the cube above?(1)The surface area of the cube is 600 square inches.(2)The length of diagonal AB is $${10}\sqrt3$$ inches.
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OG12
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If positive integer x is a multiple of 6 and positive integer y is a multiple of 14, is xy a multiple of 105?(1)x is a multiple of 9.(2)y is a multiple of 25.
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OG12
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Seven different numbers are selected from the integers 1 to 100, and each number is divided by 7. What is the sum of the remainders?(1)The range of the seven remainders is 6.(2)The seven numbers selected are consecutive integers.
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数论
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If k, m, and p are integers, is k - m - p odd?(1)k and m are even and p is odd.(2)k, m, and p are consecutive integers.
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What was the cost of a certain telephone call?(1)The call lasted 8 minutes.(2)The cost of the first minute of the call was $0.32, which was twice the cost of each minute of the call after the first.
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What is the probability that a student randomly selected from a class of 60 students will be a male who has brown hair?(1)One-half of the students have brown hair.(2)One-third of the students are males.
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