GMAT - Critical Reasoning - Test 24

Read the passage and choose the option that best answer the question.

1. A rare disease, malicitis, is being diagnosed with increasing frequency. The number of cases reported this year is more than double the number reported four years ago. The government should now allocate more funds for treatment and prevention of malicitis.

All of the following, if true, would weaken the conclusion except

A. funds already available for research in malicitis are currently under-utilized
B. a new test employed for the first time this year detects malicitis at a considerably earlier stage in the development of the disease
C. the number of cases reported this year represents the same fraction of the population as reported in all of the last five years
D. a committee of experts reviewed the funding four years ago
E. a private foundation has committed sufficient funds to cover treatment and prevention needs as well as research for the next five years

2. Studies of fatal automobile accidents reveal that, in the majority of cases in which one occupant of an automobile is killed while another survives, it is the passenger, not the driver, who is killed. It is ironic that the innocent passenger should suffer for the driver's carelessness, while the driver often suffers only minor injuries or none at all. Which of the following is an assumption underlying the reasoning in the passage above?

A. In most fatal automobile accidents, the driver of a car in which an occupant is killed is at fault.
B. Drivers of automobiles are rarely killed in auto accidents.
C. Most deaths in fatal automobile accidents are suffered by occupants of cars rather than by pedestrians.
D. Auto safety experts should increase their efforts to provide protection for those in the passenger seats of automobiles.
E. Automobile passengers sometimes play a contributing role in causing auto accidents.

3. Which of the following best completes the passage below? A primary factor in perpetuating the low salaries of women workers has been their segregation in the so-called pink-collar occupations, such as nursing, teaching, library science, and secretarial work. Partly because these jobs have traditionally been held by women, their salary levels have been depressed, and, despite increased attempts to unionize these workers in recent years, their pay continues to lag. Moreover, although a large percentage of women than ever before are now entering and remaining in the job market, most continue to gravitate toward the pink-collar fields, despite the lower salaries. It seems clear, therefore, that if the average salaries of women workers are to approach those of men, ______

A. labor unions must redouble their efforts to improve the lot of working women
B. society's perception of pink-collar jobs as less important and less demanding than other jobs must be changed
C. more men must be encouraged to enter fields traditionally occupied by women
D. the number of jobs in the pink-collar fields relative to the size of the work force as a whole must be markedly increased
E. more women must enter occupations other than those traditionally reserved for them

4. Because of a recent drought in Florida during the orange-growing season, the price of oranges this season will be three times the usual price. This will drive up the cost of producing orange juice and thus push up the price of orange juice for the consumer. Which of the following, if true, most seriously weakens the argument above?

A. The recent drought was not as severe as scientists predicted.
B. States other than Florida also supply oranges to orange juice manufacturers.
C. Other ingredients are used in the production of orange juice.
D. Last year the price of oranges was actually lower than the average price over the past ten years.
E. The price of oranges will eventually be $0.48 per crate.

5. Using computer techniques, researchers analyze layers of paint that lie buried beneath the surface layers of old paintings. They claim, for example, that additional mountainous scenery once appeared in Leonardo da Vinci's Mona Lisa, which was later painted over. Skeptics reply to these claims, however, that X-ray examinations of the Mona Lisa do not show hidden mountains. Which of the following, if true, would tend most to weaken the force of the skeptics' objections?

A. There is no written or anecdotal record that Leonardo da Vinci ever painted over major areas of his Mona Lisa.
B. Painters of da Vinci's time commonly created images of mountainous scenery in the backgrounds of portraits like the Mona Lisa.
C. No one knows for certain what parts of the Mona Lisa may have been painted by da Vinci's assistants rather than by da Vinci himself.
D. Infrared photography of the Mona Lisa has revealed no trace of hidden mountainous scenery.
E. Analysis relying on X-rays only has the capacity to detect lead-based white pigments in layers of paint beneath a painting's surface layers.

6. Black Americans are, on the whole, about twice as likely as White Americans to develop high blood pressure. This likelihood also holds for westernized Black Africans when compared to White Africans. Researchers have hypothesized that this predisposition in westernized Blacks may reflect an interaction between western high-salt diets and genes that adapted to an environmental scarcity of salt. Which of the following statements about present-day, westernized Black Africans, if true, would most tend to confirm the researchers' hypothesis?

A. The blood pressures of those descended from peoples situated throughout their history in Senegal and Gambia, where salt was always available, are low.
B. The unusually high salt consumption in certain areas of Africa represents a serious health problem.
C. Because of their blood pressure levels, most White Africans have markedly decreased their salt consumption.
D. Blood pressures are low among the Yoruba, who, throughout their history, have been situated far inland from sources of sea salt and far south of Saharan salt mines.
E. No significant differences in salt metabolism have been found between those people who have had salt available throughout their history and those who have not.

7. Which of the following best completes the passage below? At a recent conference on environmental threats to the North Sea, most participating countries favored uniform controls on the quality of effluents, whether or not specific environmental damage could be attributed to a particular source of effluent. What must, of course, be shown, in order to avoid excessively restrictive controls, is that______

A. any uniform controls that are adopted are likely to be implemented without delay
B. any substance to be made subject to controls can actually cause environmental damage
C. the countries favoring uniform controls are those generating the largest quantities of effluents
D. all of any given pollutant that is to be controlled actually reaches the North Sea at present
E. environmental damage already inflicted on the North Sea is reversible

8. Bonuses at DSR Industries cannot be awarded unless profits exceed a ten percent return on stockholders' investments in the company. Higher profits mean higher bonuses. Therefore, bonuses in a year of general economic recession will be considerably lower than bonuses in a year of peak profits at DSR. The conclusion above depends on the assumption that

A. the firm will have relatively low profits in recession years
B. the amount represented by a ten percent return on stockholders' investments in the company will increase from year to year
C. profits rarely exceed a ten percent return on stockholders' investments in the company
D. profits in excess of a ten percent return on stockholders' investments in the company are all distributed in the form of bonuses
E. bonuses at DSR never drop to zero

9. F: We ought not to test the safety of new drugs on sentient animals, such as dogs and rabbits. Our benefit means their pain, and they are equal to us in the capacity to feel pain. G: We must carry out such tests; otherwise, we would irresponsibly sacrifice the human lives that could have been saved by the drugs. Which of the following, if true, is the best objection that could be made from F's point of view to counter G's point?

A. Even though it is not necessary for people to use cosmetics, cosmetics are also being tested on sentient animals.
B. Medical science already has at its disposal a great number of drugs and other treatments for serious illnesses.
C. It is not possible to obtain scientifically adequate results by testing drugs in the test tube, without making tests on living tissue.
D. Some of the drugs to be tested would save human beings from great pain.
E. Many tests now performed on sentient animals can be performed equally well on fertilized chicken eggs that are at a very early stage of development.

10. United States hospitals have traditionally relied primarily on revenues from paying patients to offset losses from unreimbursed care. Almost all paying patients now rely on governmental or private health insurance to pay hospital bills. Recently, insurers have been strictly limiting what they pay hospitals for the care of insured patients to amounts at or below actual costs. Which of the following conclusions is best supported by the information above?

A. Although the advance of technology has made expensive medical procedures available to the wealthy, such procedures are out of the reach of low-income patients.
B. If hospitals do not find ways to raising additional income for unreimbursed care, they must either deny some of that care or suffer losses if they give it.
C. Some patients have incomes too high for eligibility for governmental health insurance but are unable to afford private insurance for hospital care.
D. If the hospitals reduce their costs in providing care, insurance companies will maintain the current level of reimbursement, thereby providing more funds for unreimbursed care.
E. Even though philanthropic donations have traditionally provided some support for the hospitals, such donations are at present declining.