| 1 |
Farmers in the North have observed that heavy frost is usually preceded by a full moon somehow generates the frost. Which of the following, if true, would weaken the farmers conviction ?
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A. The temperature must fall below 10 degrees Celsius (50 degrees Fahrenheit) for frost to occur.
B. Absence of a cloud cover cools the ground which causes frost.
C. Farmers are superstitious.
D. No one has proven that the moon causes frost.
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| 2 |
Ali is a terrible driver. He has had at least five traffic violations, int he past year. Which of the following can be said about the above claim ?
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A. This is an example of an argument that is directed against the source of the claim rather than the claim itself.
B. The statement is fallacious because it contains an illegitimate appeal to authority.
C. The above argument obtains its strength from a similarity of two compared situations.
D. The argument is built upon an assumption that is not stated but rather is concealed.
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| 3 |
A local garbage disposal company increased its profitability even though it reduced its prices in order to attract new customers. This was made possible through the use of automated trucks, thereby reducing the number of workers needed per truck. The company also switched from a concentration on household hauling to a concentration on commercial hauling. As a result of its experience, company management planned to replace all their old trucks and increase the overall size of the truck fleet, doubling hauling capacity. The company's plan as outlined above, takes into consideration each of the following except:
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A. Commercial clients have more potential than household customers.
B. The demand for garbage removal services is sensitive to price.
C. Demand for garbage removal services would increase in the future.
D. Doubling of capacity would not encessitate; a substantial increase in the work force.
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| 4 |
Professor Bilal had the task of giving grades (ranging from A - D in descending value) to her 100 students, based upon the marks they received in three examinations in which the passing mark was 50%. She was instructed to follow the following criteria: i. All students that scored between 90 and 100% in any two examinations could receive an A grade. ii. Students that came in the top decile overall were to be awarded an A. iii. Notwithstanding I and II, if any student failed an exam, the highest he or shed could get was a b. iv. The top 20 students in the whole year, when the overall exam percentages were averaged, could receive an A. Given the above criteria, which of the following in the absence of further information, would definitely not be permissible ?
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A. A. Brown, who got 95% in Chemistry and 95% in Biology, received a B grade.
B. B. White, who was first in Physics and got 96% in History, received a B grade.
C. C. Green failed English, but because he ranked ninth overall out of the 100 students, he was awarded an A grade.
D. D. Black was given an A after she came twentieth out of the 100 students and failed to get above 90% in any of the three examinations.
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| 5 |
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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| 6 |
The Monopoly is characterized by absence of or decline in competition. The ABC Company realizes that its operations are in competitive industries. Which of the following conclusions may be inferred form the above ?
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A. ABC market is not monopolistic.
B. Monopoly is defined as one seller in a market.
C. The ABC Company has no domestic competitors.
D. The ABC company is publicly owned.
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| 7 |
Significant beneficial effect of smoking occur primarily in the area of mental health, and the habit originates in a search for contentment. The life expectancy of our people has increased greatly in recent years; it is possible that the relaxation and contentment and enjoyment produced by smoking has lengthened many lives. Smoking is beneficial. Which of the following, it true, weaken the above conclusion ?
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A. That cigarettes are a major health hazard cannot be traced to the willfull act of any human or organization.
B. The government earns millions of dollars from the tobacco tax and tens of thousands of civilians are employed in the tobacco industry.
C. The evidence cited in the statement covers only one example of the effects of cigarette smoking.
D. No mention is made of possible harmful side-effects of smoking.
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| 8 |
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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| 9 |
Many countries are facing a potential crisis in 20 to 30 years time. The ratio of pensioners to workers will be changing drastically with a declining birth rate, with more lengthy education of the young, and with a reduced working life. In general, the number of people paying into pension schemes is decreasing all the time. Meanwhile, with increased health care and living standards, more people are living long enough to draw their pension funds. A controversial solution to this problem has been proposed in Germany-changing the age of retirement, for both men and women, from the current qualifying age of 63 for men and 60 for women. A radical, but socially acceptable, solution to this problem must be found. If this is not done, it is predicted that by the year 2050, one person in three will be 65 or over and the projected work force will be unable to support pensions. Assuming the following were all socially acceptable, which one would not improve the situation in the future ?
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A. Lower the retirement age.
B. Decrease the school-leaving age.
C. Impose larger contributions on employees and employers.
D. Cut pensions in half.
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| 10 |
You have three boxes, each containing two balls, one containing a black pair; one, a white pair; and third, one white ball and one black ball. On each box are pictures of two balls - either two black ones, two white ones, or one white and one black. You are told that the markings on the boxes are all wrong. You are asked to ascertain the colors of the balls contained in each box. Which of the following statements can be inferred form the above ?
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A. You can take out one ball from the box marked with two black balls and, without looking at the second ball, know that each box actually contains.
B. You can take out one ball from the box marked with two white balls and, without looking at the second ball, know what each box actually contains.
C. You can take out one ball from the box marked with one while ball and one black ball and, without looking at the second ball, know what each box contains.
D. You cannot know which balls are contained in which box until you take a ball out of more than one box.
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