破解版07 题目总数：1422 做题总人数：25684 平均准确率：71.4%
A box contains 100 balls, numbered from 1 to 100. If three balls are selected at random and with replacement from the box, what is the probability that the sum of the three numbers on the balls selected from the box will be odd?
来源：破解版07 1295人已做 600难度 56.8%正确率
The 15 homes in a new development are each to be sold for one of three different prices so that the developer receives an average (arithmetic mean) of $200,000 per home. If 4 of the homes are to be sold for $170,000 each and 5 are to be sold for $200,000 each, what will be the selling price of each of the remaining 6 homes?
来源：破解版07 340人已做 650难度 92.9%正确率
来源：GWD–TN24套 、破解版07 、Manhattan 、破解版08 、破解版12 、精选题库 、其他题库 、测评题 、Magoosh 、逻辑分类考点 184人已做 其他难度 92.9%正确率
A certain class, consisting of a lecture and a question-and-answer session, lasted from 2:45 to 4:30 one afternoon. If the lecture lasted from 2:45 to 4:15, then the question-and-answer session was what fraction of the total class time?
来源：破解版07 497人已做 其他难度 88.1%正确率
The table shows the number of residents in a certain development who are willing to contribute to build a swimming pool, provided the required contribution does not exceed the amount indicated by the resident. The following three amounts are being considered as the required contribution. Which would ensure that more than half of the residents contribute to build the pool?Ⅰ.$33 Ⅱ.$48Ⅲ.$55
来源：破解版07 524人已做 其他难度 63.7%正确率
If S=[n(n+1)] /2 and n = 40, then S =
来源：破解版07 344人已做 其他难度 91.9%正确率
In a survey of 248 people, 156 are married, 70 are self-employed, and 25 percent of those who are married are self-employed. If a person is to be randomly selected from those surveyed, what is the probability that the person selected will be self-employed but not married?
来源：破解版07 204人已做 其他难度 77%正确率
A circular cloth with a diameter of 20 inches is placed on a circular tray with a diameter of 24 inches. What fraction of the tray's surface is not covered by the cloth?
来源：破解版07 310人已做 其他难度 88.7%正确率
If x and y are positive, which of the following must be greater than 1/√（x+y） ?
来源：破解版07 559人已做 其他难度 69.9%正确率
Square S is inscribed in circle T. If the perimeter of S is 24, what is the circumference of T ?
来源：破解版07 324人已做 其他难度 84.9%正确率
【OG20-P407-476题】Which of the following, if true, would most tend to weaken the conclusions drawn from "some of this research" ?
【OG20-P402-467题】The passage suggests that in the study mentioned in highlight the method for gathering information about security of land tenure reflects which of the following pairs of assumptions about Tawahka society?
Unlike using spices for cooking, in medicinal usage they are taken in large quantities in order to treat particular maladies.
【OG20-P401-466题】According to the passage, Tucci and Talaga found that service guarantees, when offered by lower-priced restaurants, can have which of the following effects?
【OG20-P798-825题】Many utilities obtain most of their electric power from large coal and nuclear operations at costs that are sometimes two to three times higher as that of power from smaller, more efficient plants that can both make use of waste heat and take advantage of the current abundance of natural gas.
【OG20-P599-730题】In countries where automobile insurance includes compensation for whiplash injuries sustained in automobile accidents, reports of having suffered such injuries are twice as frequent as they are in countries where whiplash is not covered. Presently, no objective test for whiplash exists, so it is true that spurious reports of whiplash injuries cannot be readily identified. Nevertheless, these facts do not warrant the conclusion drawn by some commentators that in the countries with the higher rates of reported whiplash injuries, half of the reported cases are spurious. Clearly, in countries where automobile insurance does not include compensation for whiplash, people often have little incentive to report whiplash injuries that they actually have suffered.In the argument given, the two boldfaced portions play which of the following roles?
【OG20-P590-701题】Last year a record number of new manufacturing jobs were created. Will this year bring another record? Well, any new manufacturing Job is created either within an existing company or by the start-up of a new company. Within existing firms, new jobs have been created this year at well below last years record pace. At the same time, there is considerable evidence that the number of new companies starting up will be no higher this year than it was last year and there is no reason to think that the new companies starting up this year will create more jobs per company than did last year's start-ups. So clearly, the number of new jobs created this year will fall short of last years record.In the argument given, the two portions in boldface play which of the following roles ?
The amount of time it takes for most of a worker's occupational knowledge and skills to become obsolete has been declining because of the introduction of advanced manufacturing technology (AMT). Given the rate at which AMTis currently being introduced in manufacturing, the average worker's old skills become obsolete and new skills are required within as little as five years. Which of the following plans, if feasible, would allow a company to prepare most effectively for the rapid obsolescence of skills described above?
【OG20-599-728题】Exposure to certain chemicals commonly used in elementary schools as cleaners or pesticides causes allergic reactions in some children. Elementary school nurses in Renston report that the proportion of schoolchildren sent to them for treatment of allergic reactions to those chemicals has increased significantly over the past ten years. Therefore, either Renston's schoolchildren have been exposed to greater quantities of the chemicals, or they are more sensitive to them than schoolchildren were ten years Ago.Which of the following is an assumption on which the argument depends?
Roland: The alarming fact is that 90 percent of the people in this country now report that they know someone who is unemployed. Sharon: But a normal, moderate level of unemployment is 5 percent, with one out of 20 workers unemployed. So at any given time if a person knows approximately 50 workers, one or more will very likely be unemployed. Sharon's argument relies on the assumption that