Parland’s alligator population has been declining in

recent years, primarily because of hunting. Alligators

prey heavily on a species of freshwater fish that is highly

valued as food by Parlanders, who had hoped that

the decline in the alligator population would lead to an

increase in the numbers of these fish available for human

consumption. Yet the population of this fish species has

also declined, even though the annual number caught for

human consumption has not increased.

Which of the following, if true, most helps to explain

the decline in the population of the fish species?

ln virtually any industry, technological improvements increase labor productivity, which is the output of goods and services per person-hour worked. ln Parland’s industries, labor productivity is significantly higher than it is in Vergia’s industries. Clearly, therefore, Parland’s industries must, on the whole, be further advanced technologically than Vergia’s are.

The argument is most vulnerable to which of the following criticisms?

The Maxilux car company’s design for its new luxury model, the Max 100, included a special design for the tires that was intended to complement the model’s image. The winning bid for supplying these tires was submitted by Rubco. Analysts concluded that the bid would only just cover Rubco’s costs on the tires, but Rubco executives claim that winning the bid will actually make a profit for the company.

Which of the following, if true, most strongly justifies the claim made by Rubco’s executives?

Which of the following most logically completes the argument?

ln a typical year, lnnovair’s airplanes are involved in 35 collisions while parked or being towed in airports, with a resulting yearly cost of S1,000,000 for repairs.

To reduce the frequency of ground collisions, lnnovair will begin giving its ground crews additionaltraining, at an annual cost of 5500,000. Although this will cut the number of ground collisions by about half at best, the drop in repair costs can be expected to be much greater, since ___________________.

Many agriculturally intensive areas of the world are beginning to encounter water scarcity problems. As a result, many farmers in these areas are likely to reduce their output as the water supply they need in order to maintain production shrinks. However, one group of farmers in such a region plans to increase their production by implementing techniques for water conservation.

Which of the following, if true, would most strongly support the prediction that the group’s plan will succeed?

Hollywood restaurant is replacing some of its standard tables with tall tables and stools. The restaurant already fills every available seat during its operating hours, and the change in seating arrangements will not result in an increase in the restaurant’s seating capacity. Nonetheless, the restaurant’s management expects revenue to increase as a result of the seating change without any concurrent change in menu, prices, or operating hours.

Which of the following, if true, provides the best reason for the expectation?

Only a reduction of 10 percent in the number of scheduled flights using Greentown’s airport will allow the delays that are so common there to be avoided. Hevelia airstrip, 40 miles away, would, if upgraded and expanded, be an attractive alternative for fully 20 percent of the passengers using Greentown airport. Nevertheless, experts reject the claim that turning Hevelia into a fullservice airport would end the chronic delays at Greentown.

Which of the following, if true, most helps to justify the experts’ position?