Everything You Need to Pass: test_prep GMAT_SECTION_3_VERBAL_ABILITY

As an experienced labor organizer and the former head of one of the nations most powerful labor unions, Grayson is an excellent choice to chair the new council on business-labor relations.Which of the following, if true, would most strengthen the conclusion above?

According to an independent computer-industry analyst, the new Regent microcomputer is of high quality, is fast, and costs less than any currently existing competing model. It is reasonable to conclude, therefore, as the manufacturers prospectus does, that the Regent will quickly establish itself as a fast-selling, low- priced alternative to currently available microcomputers.Which of the following, if true, would LEAST weaken the argument above?

Fresh potatoes generally cost about $2 for a 10-pound bag, whereas dehydrated instant potatoes cost, on average, about $3 per pound. It can be concluded that some consumers will pay 15 times as much for convenience, since sales of this convenience food continue to rise.Which of the following, if true, indicates that there is a major flaw in the argument above?

Most archaeologists have held that people first reached the Americas less than 20,000 years ago by crossing a land bridge into North America. But recent discoveries of human shelters in South America dating from 32,000 years ago have led researchers to speculate that people arrived in South America first, after voyaging across the Pacific, and then spread northward.Which of the following, if it were discovered, would be pertinent evidence against the speculation above?

If a latter-day Robinson Crusoe was marooned on an island with an eclectic mix of palms, he could eat dates and coconut meat, relax in a palm recliner in his palm-post bungalow under a palm-thatch roof, buff his palm-plank surfboard with carnauba palm wax and watch a palm-fringed sunset.

A public-service advertisement advises that people who have consumed alcohol should not drive until they can do so safely. In a hospital study, however, subjects questioned immediately after they consumed alcohol underestimated the time necessary to regain their driving ability. This result indicates that many people who drink before driving will have difficulty following the advertisements advice.Which of the following, if true, most strongly supports the argument above?