| 1 |
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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| 2 |
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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| 3 |
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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| 4 |
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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| 5 |
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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| 6 |
Ira is taller than Sam. Elliot is taller than Harold. Harold is shorter than Gene. Sam and Gene are of the same height. If the above is true, which of the following conditions, must also be true?
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A. Elliot is taller than Gene
B. Elliot is taller than Ira
C. Sam is shorter than Elliot
D. Ira is taller than Harold
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| 7 |
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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| 8 |
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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| 9 |
Inflation rose by 5.1 % over the second quarter, up form 4.1 % during the first quarter of the year and higher than the 3.3% record during the same time last year. However, the higher price index did not seem to alarm Wall street, as stock prices remained steady. Which of the following, if true, could explain the reaction of Wall Street ?
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A. Stock prices were steady because of a fear that inflation would continue.
B. The President announced that he was concerned about rising inflation.
C. Economists warned that inflation would persist.
D. Much of the quarterly increase in the price level was due to a summer droughts effect on food prices.
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| 10 |
Forty years after African colonies began emerging as nations, modern loyalties still often go first to the tribe. From Angola to Ethiopia, ethnic hatred has forced hundreds of thousands of people to flee their homes, making Africa the continent with the world's largest number of refugees. Which of the following statements best summarizes the above ?
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A. Africa is best characterized ethnic fractionalization.
B. Angola and Ethiopia have the worst record of inter ethnic strife in Africa.
C. Continued warfare has made Africa a nation of refugees.
D. Africa is best characterized as a federation of many states.
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