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The positive two-digit integers x and y have the same digits,but in reverse order.Which of the following must be a factor of x+y?
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If 0< x< 1,what is the median of the values x,1/x,x²,√x ,and x³?
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If 1 < x < y < z, which of the following has the greatest value?
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Last summer as with every summer, Oshin and Reena made exactly one long
trip together to a town neither of them had visited before. For their long
summer trips, Oshin and Reena have always chosen to visit a town that Reena
would have liked to visitunless Oshin had been to that town before. Reena
had visited Town F and Town Gbefore-and Oshin had never visited Town J or
Town K. Did Oshin and Reena visit one ofthese fourtowns last summer?
(1) Reena had never visited Town J and Oshin had never visited Town F.
(2)Oshinwould have liked to visit either Town G or Town K
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Of the 400 employees in a certain office, 260 have been given a watch and 80 have been given a cell phone. If the number of employees who have been given both a watch and a cell phone is 1/2 the number who have been given neither a watch nor a cell phone, how many employees have been given a watch but not a cell phone?
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In a class of 21 students, how many scored above the class average (arithmetic mean) on the final exam?
(1) The class average is 78
(2) The class median is 78.
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The passage is primarily concerned with
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In recent years, teachers of introductory courses in Asian American studies have been facing a dilemma nonexistent a few decades ago, when hardly any texts in that field were available. Today, excellent anthologies and other introductory texts exist, and books on individual Asian American nationality groups and on general issues important for Asian Americans are published almost weekly. Even professors who are experts in the field find it difficult to decide which of these to assign to students; non-experts who teach ins related areas and are looking for writings for and by Asian Americans to include in survey courses are in an even worse position.
A complicating factor has been the continuing lack of specialized one-volume reference works on Asian Americans, such as biographical dictionaries or desktop encyclopedias. Such works would enable students taking Asian American studies courses (and professors in related fields) to look up basic information on Asian American individuals, institutions, history, and culture without having to wade through mountains of primary source material. In addition, given such works, Asian American studies professors might feel more free to include more challenging Asian American material in their introductory reading lists, since good reference works allow students to acquire on their own the background information necessary to interpret difficult or unfamiliar material.
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The "dilemma" mentioned in highlight text can best be characterized as being caused by the necessity to make a choice when faced with a
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The passage suggests that the factor mentioned in highlight text complicates professors` attempts to construct introductory reading lists for courses in Asian American studies in which of the following ways?
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The primary purpose of the passage is to
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According to the passage, until recently zoologists believed which of the following about all phocid mothers?
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The "apparent contradiction" mentioned in line 29 refers to the discrepancy between the：
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Which of the following, if true, would provide the most support for Castañeda`s explanation of the "stereotypical plot" mentioned in lines 18-19?
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According to the passage, which of the following contributed to Marcus Garvey's success?
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The passage suggests that many African American people responded to their experiences in the armed forces in which of the following ways?
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One summer, floods covered low-lying garlic fields situated in a region with a large mosquito population. Since mosquitoes lay their eggs in standing water, flooded fields would normally attract mosquitoes, yet no mosquitoes were found in the fields. Diallyl sulfide, a major component of garlic, is known to repel several species of insects, including mosquitoes, so it is likely that diallyl sulfide from the garlic repelled the mosquitoes.
Which of the following, if true, most strengthens the argument?
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In the past, most children who went sledding in the winter snow in Verland used wooden sleds with runners and steering bars. Ten years ago, smooth plastic sleds became popular; they go faster than wooden sleds but are harder to steer and slow. The concern that plastic sleds are more dangerous is clearly borne out by the fact that the number of children injured while sledding was much higher last winter than it was ten years ago.
Which of the following, if true in Verland, most seriously undermines the force of the evidence cited?
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Personnel officer: The exorbitant cost of our health-insurance benefits reflects the high dollar amount of medical expenses incurred by our employees. Employees who are out of shape, as a group, have higher doctor bills and longer hospital stays than do their colleagues who are fit. Therefore, since we must reduce our health-insurance costs, we should offer a rigorous fitness program of jogging and weight lifting to all employees, and require employees who are out of shape to participate.
The conclusion reached by the personnel officer depends on which of the following assumptions?
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A drug that is highly effective in treating many types of infection can, at present, be obtained only from the bark of the ibora, a tree that is quite rare in the wild. It takes the bark of 5,000 trees to make one kilogram of the drug. It follows, therefore, that continued production of the drug must inevitably lead to the ibora`s extinction.
Which of the following, if true, most seriously weakens the argument above?
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