OG19新题 题目总数：142 做题总人数：14153 平均准确率：78.2%
List S consists of the positive integers that are multiples of 9 and are less than 100. What is the median of the integers in S ?
来源：OG2022分册 11人已做 其他难度 81.8%正确率
For positive integers a and b, the remainder when a is divided by b is equal to the remainder when b is divided by a. Which of the following could be a value of ab ? I. 24 II. 30III. 36
来源：OG2022分册 6人已做 其他难度 100%正确率
If x – y = R and xy = S, then (x – 2)(y + 2) =
来源：OG2022分册 8人已做 其他难度 87.5%正确率
If x = and y = , what is the value of the expression ?
来源：OG2022分册 2人已做 其他难度 100%正确率
For what value of x between –4 and 4, inclusive, is the value of x2 – 10x + 16 the greatest?
来源：OG2022分册 2人已做 其他难度 100%正确率
The toll T, in dollars, for a truck using a certain bridge is given by the formula T = 1.50 + 0.50(x – 2), where x is the number of axles on the truck. What is the toll for an 18-wheel truck that has 2 wheels on its front axle and 4 wheels on each of its other axles?
来源：OG2022分册 3人已做 其他难度 33.3%正确率
A grocer has 400 pounds of coffee in stock, 20 percent of which is decaffeinated. If the grocer buys another 100 pounds of coffee of which 60 percent is decaffeinated, what percent, by weight, of the grocer’s stock of coffee is decaffeinated?
来源：OG2022分册 3人已做 其他难度 100%正确率
Point X lies on side BC of rectangle ABCD, which has length 12 and width 8. What is the area of triangular region AXD ?
来源：OG2022分册 1人已做 其他难度 100%正确率
Which of the following represent positive numbers?I. –3 – (–5) II. (–3)(–5) III. –5 – (–3)
来源：OG2022分册 2人已做 其他难度 100%正确率
A company sells radios for $15.00 each. It costs the company $14.00 per radio to produce 1,000 radios and $13.50 per radio to produce 2,000 radios. How much greater will the company’s gross profit be from the production and sale of 2,000 radios than from the production and sale of 1,000 radios?
来源：OG2022分册 0人已做 其他难度 0%正确率
The Acme Corporation has found that improvements in its information technology infrastructure allow its employees to make more decisions that are both sound and well-informed than was previously feasible. Consequently, the corporation plans to improve employee productivity by introducing new managerial techniques that delegate much of the decision-making to lower levels of the organizational hierarchy. Managers will simply set clear standards and guidelines and then allow employee teams to undertake tasks without centralized control.Which of the following, if true, would most strongly support a prediction that the Acme Corporation's plan will achieve its goal?
Mourdet Winery: Danville Winery's new wine was introduced to compete with our most popular wine, which is sold in a distinctive tall, black bottle. Danville uses a similar bottle. Thus, it is likely that many customers intending to buy our wine will mistakenly buy theirs instead. Danville Winery: Not so. The two bottles can be readily distinguished: the label on ours, but not on theirs, is gold colored. Which of the following, if true, most undermines Danville Winery's response?
In the past year Harborville has had an unusually high rate of new cases of a certain disease. An investigation revealed that over the past five years Harborville's public water supply has had a high level of pollutants. Medical researchers have hypothesized that Harborville's water is responsible for the high rate of new cases of the disease.Each of the following, if true, provides additional support for the researchers' hypothesis EXCEPT:
In a certain wildlife park, park rangers are able to track the movements of many rhinoceroses because those animals wear radio collars. When, as often happens, a collar slips off, it is put back on. Putting a collar on a rhinoceros involves immobilizing the animal by shooting it with a tranquilizer dart. Female rhinoceroses that have been frequently recollared have significantly lower fertility rates than uncollared females. Probably, therefore, some substance in the tranquilizer inhibits fertility.Which of the following is an assumption on which the argument depends?
In preparation for a large-scale tree-planting project, Thomasville has recorded the location, species, and condition of every tree in its downtown area. The results will be compared with results of the last such tree census, taken 20 years ago. Planting trees primarily from the species that turns out to have the best record of survival will assure downtown Thomasville of an abundant tree population 20 years from now.Which of the following, if true, most seriously undermines the claim that the tree-planting proposal will assure an abundant tree population?
【OG20-P283-350题】Is the sum of the prices of the 3 books that Shana bought less than $48?(1)The price of the most expensive of the 3 books that Shana bought is less than $17.(2)The price of the least expensive of the 3 books that Shana bought is exactly $3 less than the price of the second most expensive book.
In parts of South America, vitamin-A deficiency is a serious health problem, especially among children. In one region, agriculturists hope to improve nutrition by encouraging farmers to plant a new variety of sweet potato called SPK004 that is rich in betacarotene, which the body converts into vitamin A. The plan has good chances of success, since sweet potato is a staple of the region’s diet and agriculture, and the varieties currently grown contain little beta-carotene.Which of the following, if true, most strongly supports the prediction that the plan will succeed?
According to the passage, the magnetic field within the Moon’s core
The passage implies that, in comparing four European countries, Duverger found that the voting rates of women and men were most different in the country in which women
Patricia purchased x meters of fencing. She originally intended to use all of the fencing to enclose a square region, but later decided to use all of the fencing to enclose a rectangular region with length y meters greater than its width. In square meters, what is the positive difference between the area of the square region and the area of the rectangular region?(1)xy=256(2)y=4