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Alvin (President), Brad (Vice President), Chad (Vice President), Dan (senior analyst), Ellinor (analyst), and Farsad (analyst) work at Goldly & Morgman, a corporate firm that works with consultants. The president supervises the vice president, who in turn supervises the senior analyst, who in turn supervises the analysts. There is one exception, which is that Brad does not supervise anyone. These are the only supervisory relationships involving these 6 employees.Each proposal it receives from its consultants must be initially reviewed by exactly one employee. Each proposal reviewed by an employee must then be reviewed by that person's supervisor. No other rules require anyone else to review the proposal. Anyone not required to review a given proposal will not review it.Select Dan among reviewers for the maximum number of employees that could have reviewed a single proposal if Dan were among the reviewers. Select Alvin among reviewers for the maximum number of employees that could have reviewed a single proposal if Alvin were among the reviewers. Make only two selections, one in each column.
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Magoosh
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Lisa and Phillip are in a group of J employees. From this group of J employees, K will be selected, at random, to sit in a line of K chairs. There are absolutely no restrictions in either the selection process or the order of seating—both are entirely random. What is the probability that the employee Lisa is seated exactly next to employee Phillip? Statement #1: K = 15Statement #2: K = J
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Magoosh
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If line k in the xy-coordinate plane has the equation Ax + By = C, what is the slope of line k ?(1) A = 2B(2) C = 4B
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Magoosh
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Right now, a barrel of water is exactly 40% full of water. What is the volume of the barrel?Statement #1: If the water in the barrel right now were increased by 25%, then the barrel would be exactly half full.Statement #2: If a volume of water equal to half of what is in the barrel right now were added to the barrel, the empty space left in the barrel then would equal the volume of the water now.
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Manhattan
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Scientist: All other things being equal, the intensity of heat increases as the distance from the heat source decreases. Knowing this, most people conclude that the Earth's seasons are caused by the Earth's changing distance from the sun. In other words, winter occurs when the Earth is far from the sun, and summer occurs when the earth is close to the sun. However, we know that as North America experiences summer, South America experiences winter, even though the difference in the continents' distance to the sun is negligible. Therefore, the earth's changing distance from the sun does not cause the seasons.
In the argument, the two portions in boldface play which of the following roles?
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Manhattan
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Which of the following best describes the structure of the passage?
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Manhattan
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The tone of the passage suggests that the author regards the changes described in the passage as:
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Manhattan
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Which of the following best describes the main idea of the passage?
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Manhattan
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Regular maintenance such as inflating tires, replacing air filters, and tuning the engine can not only extend the life of a vehicle, but also can boost fuel efficiency.
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Manhattan
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The mayor of Coast Town has determined that the best way to pay for the construction of a new library is to charge all residents and non-residents a fee for visiting Coast Town's well-regarded beach. The mayor reasons that at current levels of visitation, the revenue generated from the beach visitation fee will pay for the new library within three years.
Which of the following pieces of information would be most useful in evaluating the mayor's conclusion?
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Manhattan
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Modern-day snakes are believed to evolve from four-legged lizards, but scientists were divided over whether that phase of evolution occurred on land or in the sea; the recent discovery of fossils of a land-dwelling snake with two legs provides new information for the ongoing debate.
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Manhattan
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Researchers have noticed that people whose blood shows abnormally low levels of calcium usually have laryngeal polyps, which can permanently damage vocal cords and result in partial or even total loss of voice. In order to reduce the risk of polyps, the researchers recommend a diet high in calcium-rich foods such as dairy and green, leafy vegetables.Which of the following, if true, most strongly suggests that following the researchers' recommendation would NOT be effective?
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Manhattan
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Company X conducted a taste test to determine whether its new soft drink had a good chance of commercial success. A sample of consumers was asked to compare the flavor of the new soft drink to that of an established brand without knowing the true identity of either beverage. Overwhelmingly, the consumers preferred the taste of the proposed soft drink to that of the established brand. Clearly, Company X has a good chance of commercial success with its new soft drink.Which of the following, if true, would most seriously weaken the argument above?
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Manhattan
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According to a study concerning environmental economics, any manufacturer that offers an environmentally sound lawnmower, such as a manual push mower, will almost certainly reap a huge profit because consumers say that they want a mower that requires neither gasoline nor electricity. A spokesman for the trade association of gasoline lawnmower manufacturers asserted that this claim had little factual support.Which of the following, if true, would best support the claim made by the spokesperson?
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Manhattan
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The decline and fall of the Roman Empire remains a topic of vigorous debate to this day; historians have attributed it to a variety of causes, including military insurrection, ethnic conflict, and widespread immorality.
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Antibiotics are chemical substances that kill or inhibit the growth of bacteria. The success of antibiotics against disease-causing bacteria is one of modern medicine's great achievements. However, because bacteria adapt quickly to new environmental conditions, many bacteria harmful to humans have developed ways to circumvent the effects of antibiotics, and many infectious diseases are now much more difficult to treat than they were just a few decades ago. Critically ill patients are more likely to require the aid of antibiotics to fight infections, so are more likely to be harmed by the spread of antibiotic-resistant bacteria.Bacteria contain genetic material called plasmids, which can carry the genes enabling antibiotic resistance. Bacteria share these plasmids among one another via a direct, mechanical transfer between cells, and antibiotic-resistant plasmids can thus spread easily throughout a bacterial population to create a strain of resistant bacteria. Less commonly, a natural chromosomal mutation may confer antibiotic resistance on a bacterium, which can then reproduce and become dominant via natural selection, likely when that colony is exposed to antibiotics. In the absence of human involvement, however, bacteria rarely develop resistance to antibiotics.On January 1, 2006, the European Union banned the feeding of all antibiotics to livestock for non-therapeutic purposes. This sweeping policy followed a 1998 ban on the non-therapeutic use of four medically-important antibiotics on animals. In the United States, by contrast, animals raised on industrial-scale factory farms are still routinely administered low levels of antibiotics in their feed—not as a cure for ongoing maladies, but primarily as a growth-enhancing agent to produce more meat and also as a prophylactic measure to compensate for overcrowded and unsanitary conditions. Currently, several antibiotics that are used in human medical treatment, such as tetracycline, penicillin and erythromycin, are also administered non-therapeutically to healthy livestock and poultry. This long-term non-therapeutic use of antibiotics in the United States creates the ideal conditions for the development of antibiotic-resistant bacteria, as the drugs kill only the susceptible bacteria, leaving the resistant strains to reproduce and flourish. The newly-resistant bacteria can then spread from farm animals to other animals, including humans.
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Manhattan
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Any government action that intrudes on the right of privacy of an individual is unconstitutional. Therefore, the requirement that students in public school submit to random locker searches is unconstitutional.Which of the following, if true, most weakens the conclusion that random locker searches in public schools are unconstitutional?
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Manhattan
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Foods high in tryptophan, an amino acid that is a precursor to serotonin, can help people to fall asleep by reducing anxiety, relaxing the brain, and in regulating the sleep cycle.
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Manhattan
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The primary purpose of the passage is to
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Manhattan
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Red-light cameras, originally implemented in an attempt at increasing the safety of intersections, have been precisely the opposite: drivers are afraid of expensive citations and often brake suddenly as they approach camera-equipped intersections, so they cause rear-end accidents.
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