●Question 1. Sentence Correction

Direction: Correct the underlined part

A report by the American Academy for the Advancement of Science has concluded that much of the currently uncontrolled dioxins to which North Americans are exposed comes from the incineration of wastes.

A. much of the currently uncontrolled dioxins to which North Americans are exposed comes
B. much of the currently uncontrolled dioxins that North Americans are exposed to come
C. much of the dioxins that are currently uncontrolled and that North Americans are exposed to comes
D. many of the dioxins that are currently uncontrolled and North Americans are exposed to come
E. many of the currently uncontrolled dioxins to which North Americans are exposed come

●Question 2. Critical Reasoning

For similar cars and drivers, automobile insurance for collision damage has always cost more in Greatport than in Fairmont. Police studies, however, show that cars owned by Greatport residents are, on average, slightly less likely to be involved in a collision than cars in Fairmont. Clearly, therefore, insurance companies are making a greater profit on collision-damage insurance in Greatport than in Fairmont.

Which of the following is an assumption on which the argument depends?

A. The first supplies a context for the historian’s argument; the second acknowledges a consideration that has been used to argue against the position the historian seeks to establish.
B. The first presents evidence to support the position that the historian seeks to establish; the second acknowledges a consideration that has been used to argue against that position.
C. The first provides a context for certain evidence that supports the position that the historian seeks to establish; the second is that position.
D. The first is a position for which the historian argues; the second is an assumption that serves as the basis of that argument.
E. The first is an assumption that the historian explicitly makes in arguing for a certain position; the second acknowledges a consideration that calls that assumption into question.

●Question 3. Data Sufficiency

Directions: In this problem, a question is followed by two statements containing certain data. You are to determine whether the data provided by the statements are sufficient to answer the question. Choose the correct answer based upon the statement’s data and your knowledge of mathematics.

What is the perimeter of a parallelogram? 1) The length of a side of the parallelogram is 10. 2) The area of the parallelogram is 50.

A. statement 1 alone is sufficient, but statement 2 alone is not sufficient to answer the question
B. statement 2 alone is sufficient, but statement 1 alone is not sufficient to answer the question
C. both statements taken together are sufficient to answer the question, but neither statement alone is sufficient
D. each statement alone is sufficient
E. statements 1 and 2 together are not sufficient, and additional data is needed to answer the question

●Question 4. Problem Solving

If 1+2+...+25=325, then what is the value of 26+27+....+50? A. 800 B. 850 C. 900 D. 950 E. 1,000


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●Answer to Q1: E

The answer choices of A, B, and C are committing a decisive error in terms of using ‘much’ for ‘dioxins’, which should be treated as a countable plural noun. In D, the incomplete sentence ‘North Americans are exposed to’ should have a relative pronoun such as ‘that’ or ‘which’ in front of the sentence to make a parallel structure with the preceding relative clause ‘that are currently uncontrolled’. So, the answer is E.

●Answer to Q2: A

The question is asking for an answer choice that supports the author’s conclusion that insurance companies are making more money from Greatport because they charge more to drivers in Greatport than in Fairmont although Greatport residents are less likely to get involved in a collision. Since profit is derived by subtracting cost from revenue, proving that insurance companies’ costs in Greatport are not higher than Fairmont can support the author’s argument. Therefore, choice (A) is the correct answer since repairing costs are one component of insurance companies’ costs.

●Answer to Q3: E

Since the number of variables of a parallelogram is 3, 1) & 2) we can not know the altitude of the parallelogram, therefore the best answer is E.

●Answer to Q4: D

26+27+....+50=(1+25)+(2+25)+(3+25)+......+(25+25)=25*25+(1+2+3+...+25)=625+325=950, therefore the best answer is D.

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