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In the human body, platelets, promote blood clotting by clumping together. Aspirin has been found to prevent clotting by making platelets less sticky. Research has now shown that heart attacks and strokes caused by blood clots could be avoided by taking one aspirin a day. Statistics show that the incidence of second heart attacks Unfortunately, the drug has several unpleasant side effects, including nausea, gastric bleeding, and, in severe cases, shock. In children, it has been linked to Reye Syndrome, a rare, but occasionally fatal, childhood illness. One balance, however, for men aged 40 and over, an aspirin a day may present an excellent prophylactic measure for a disease that affects 1.5 million Americans yearly and claims the lives of about 540,000. Which of the following conclusions can most properly be drawn from the information above ?
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A. All people should take an aspirin a day to prevent heart attacks.
B. Painkillers prevent heart attacks.
C. Smokers can safely continue smoking, provided that they take at least one aspirin a day.
D. The majority of people suffering second subsequent cardiac arrests could have been saved by taking an aspirin a day.
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| 2 |
The burning of coal, oil, and other combustible energy sources produces carbon dioxide, a natural constituent of the atmosphere. Elevated levels of carbon dioxide are thought to be responsible for half the greenhouse effect. Enough carbon dioxide has been sent into the atmosphere already to cause a significant temperature increase. Growth in industrial production must be slowed, or production processes must be changed. Which of the following, it true, would tend to weaken the strength of the above conclusion ?
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A. Many areas of the world are cold anyway, so a small rise in temperature would be welcome.
B. Carbon dioxide is bad for the health.
C. Most carbon dioxide is emitted by automobiles.
D. Industry is switching over to synthetic liquid fuel extracted form coal.
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| 3 |
In a world of many trading countries, the trade between two countries need not be balanced for the trade of each to be in global balance. Differing demands and productive capabilities among countries will cause a specific country to have trade deficits with some countries and surpluses with other countries. Which of the following conclusions best summarizes the passage above ?
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A. A country trade will always be in balance even though it runs a deficit with a single country.
B. A country trade deficits and surpluses with other countries always balance out.
C. A country global trade balance is a sign of strength or weakness.
D. Countries should not be concerned if they have trade deficits because they will balance out in the long run.
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| 4 |
Ever since I arrived at the college last week, I ve been shocked by the poor behavior of students and the unfriendly attitude of the towns-people, but the professors are very erudite and genuinely helpful. Still, I wonder if i should have come here in the first place. Which of the following, if true, would weaken the above conclusion ?
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A. Professors are not always helpful to students.
B. The college numbers over 50,000 students.
C. The college is far from the student's home.
D. Not all professors have doctorates.
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| 5 |
Every town with a pool hall has its share of unsavory characters. This is because the pool hall attracts gamblers and all gamblers are unsavory. Which of the following, if true, cannot be inferred from the above ?
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A. All gamblers are unsavory,
B. All pol halls attract gamblers.
C. Every town has unsavory characters.
D. All gamblers are attracted by pool halls.
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| 6 |
In August 1980, according to a new your. Times/CBS news poll, 36 percent of the voters called themselves Republicans or said they were independents leaning toward being Republicans. In November 1984, the Republican figure rose to 47 percent. But in the latest Times/CBS survey, the Republicans were down to 38 percent. Therefore, the Democrats are likely to win the next election. Which of the following, if true, would most seriously weaken the above conclusion ?
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A. Republicans were a minority in 1984, but a Republican president was elected.
B. People tend to switch their votes at the last minute.
C. People vote for the best candidate, not for a political party.
D. No one can predict how people will vote.
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| 7 |
Pioneers of the motor-car industry realized that if they were going to meet the growing demand for their product, they had to adapt the labor force used in the productive process. Instead of many men working to complete all the stages of one car at a time, they assigned defined tasks to each man which they would repeat on every car. Which of the following can be concluded form the passage ?
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A. Early motor car manufacturers intended to increase productivity by applying the principle of division of labor.
B. The car workers became disgruntled because they were assigned monotonous, repetitive tasks on the assembly line.
C. Economies of scale enabled early motor companies to expand.
D. A bad worker would perform the same task badly on each car, leading to many more rejects.
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| 8 |
Prompted by proposal to convert a shipyard into a complex of condominiums with full-service marina and boat repair center and by concern about the proposal from local residents, baymen, and environmentalists, the town is considering a one-year building moratorium for the water front area. Which of the following, if true, would most seriously weaken opposition to the complex ?
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A. Condominiums would sell for $350,000 each.
B. There is a large demand for boat repair services.
C. A growing population results in the closure of shellfish.
D. There are already 1,200 moorings on the waterfront.
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| 9 |
Average family income is right where it was 20 years ago, even though in most families these days, husbands and wives are working. The above statement implies all of the following, except:
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A. Even though nominal family income may have increased, inflation has risen at an equal rate.
B. More husbands and wives are working today than 20 years ago.
C. It was more prevalent for one spouse-to-work 20 yeas ago than today.
D. Wives earn more than husbands today.
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| 10 |
Many of the convenience foods on the market today, like dry cereals, have less nutrients than natural foods, which were dominant a decade or two ago. Many nutritionists claim that dry cereal gives less nourishment than natural foods like eggs or bacon. Opponents of the nutritionists views state that examination of grade-school students show less nutritional deficiency than in their parents time. Which of the following, if true, would tend to strengthen the opponents view ?
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A. Grade-school children reported eating no breakfast at all.
B. Fewer convenience foods were available to the parents.
C. Adults claim to eat convenience foods as well as natural foods.
D. Convenience foods can be digested just as quickly as natural foods.
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