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For the safety-conscious Swedish market, a United States manufacturer of desktop computers developed a special display screen that produces a much weaker electromagnetic field surrounding the user than do ordinary screens. Despite an advantage in this respect over its competitors, the manufacturer is introducing the screen into the United States market without advertising it as [...]

Species interdependence in nature confers many benefits on the species involved, but it can also become a point of weakness when one species involved in the relationship is affected by a catastrophe. Thus, flowering plant species dependent on insect pollination, as opposed to self-pollination or wind pollination, could be endangered when the population of insect-pollinators [...]

In 1990 all of the people who applied for a job at Evco also applied for a job at Radeco, and Evco and Radeco each offered jobs to half of these appli- cants. Therefore, every one of these applicants must have been offered a job in 1990. The argument above is based on which of [...]

Most studies of recent Southeast Asian immigrants to the United States have focused on their adjustment to life in their adopted country and on the effects of leaving their homelands. James Tollefson’s Alien Winds examines the resettlement process from a different perspective by investigating the educational programs offered in immigrant processing centers. Based on interviews, [...]

If n is an integer between 2 and 100 and if n is also the square of an integer, what is the value of n? (1) n is the cube of an integer. (2) n is even.

A jewelry dealer initially offered a bracelet for sale at an asking price that would give a profit to the dealer of 40 percent of the original cost. What was the original cost of the bracelet? (1) After reducing this asking price by 10 percent, the jewelry dealer sold the bracelet at a profit of [...]

A prominent investor who holds a large stake in the Burton Tool company has recently claimed that the company is mismanaged, citing as evidence the company’s failure to slow production in response to a recent rise in its inventory of finished products. It is doubtful whether an investor’s sniping at management can ever be anything [...]

If x and y are nonzero integers, is x/y an integer? (1) x is the product of 2 and some other integer. (2) There is only one pair of positive integers whose product equals y.

Mahatma Gandhi’s is credited as having championed a nonviolent approach to reform as apractical and moral means to struggle against social injustice. A. as having B. with having C. to have D. as the one who E. for being the one who

Is the perimeter of Square S greater than the perimeter of equilateral triangle T? (1) The ratio of the length of a side of S to the length of a side of T is 4:5. (2) The sum of the lengths of a side of S and a side of T is 18. A) Statement [...]

The more frequently employees that take a break for guided relaxation exercises during working hours each week, the fewer sick days they take.  Even workers who take a guided relaxation break once a week during working hours take less sick leave than those who do not perform relaxation.  Therefore, if companies started guided relaxation programs, [...]

Robinson is a botanist whose dream is to reestablish an authentic pre-human piece of Hawaii, a place now awash with introduced species of plants and animals. A)who has the dream to reestablish an authentic pre-human piece of Hawaii, B) whose dream it is to reestablish an authentic pre-human piece of Hawaii, C) who it is [...]

Despite no proof that the consumption of any particular foods reverse hardening of the arteries, studies indicate that refraining from eating certain foods could help reverse blockage of coronary arteries, the blood vessels that feed the heart. (A) Despite no proof that the consumption of any particular foods reverse hardening of the arteries, studies indicate [...]

According to a recent theory, Archean-age gold-quartz vein systems were formed over two billion years ago from magnetic fluids that originated from molten granite-like bodies deep beneath the surface of the Earth. This theory is contrary to the widely held view that the systems were deposited from metamorphic fluids, that is, from fluids that formed [...]