●Question 1. Sentence Correction

Direction: Correct the underlined part

Shoppers in sporting goods stores, unlike in department stores, do very little impulse shopping, not buying a pair of skis and a boomerang when they come in for a basketball, but they leave with a basketball only.

A. in department stores, do very little impulse shopping, not buying a pair of skis and a boomerang when they come in for a basketball, but they leave with a basketball only
B. in department stores, shop impulsively very little; someone who comes in for a basketball will leave with a basketball only and not also buy a pair of skis and a boomerang as well
C. those in department stores, do very little impulse shopping, do not buy a pair of skis and a boomerang when they come in for a basketball, but leave with only a basketball
D. those in department stores, do very little impulse shopping; someone who comes in for a basketball will leave with a basketball only and not buy a pair of skis and a boomerang as well
E. department stores, shop impulsively very little; someone will not buy a pair of skis and a boomerang when they come in for a basketball but will leave with only a basketball

●Question 2. Critical Reasoning

Which of following most logically completes the argument?

The last members of a now-extinct species of a European wild deer called the giant deer lived in Ireland about 16,000 years ago. Prehistoric cave paintings in France depict this animal as having a large hump on its back. Fossils of this animal, however, do not show any hump. Nevertheless, there is no reason to conclude that the cave paintings are therefore inaccurate in this regard, since ______.

A. some prehistoric cave paintings in France also depict other animals as having a hump
B. fossils of the giant deer are much more common in Ireland than in France
C. animal humps are composed of fatty tissue, which dose not fossilize
D. the cave paintings of the giant deer were painted well before 16,000 years ago
E. only one currently existing species of deer has any anatomical feature that even remotely resembles a hump

●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.

Is abx>aby?
1) ax>bx
2) ay>by

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 you tossed a coin three times, what s the probability that you get the same side all three times.
A. 1/2 B. 1/3 C. 1/4 D. 1/5 E. 1/8




———————————————————————

●Answer to Q1: D
In A and B, there is nothing that can be compared with the preceding ‘shoppers’. And C committed an error of using the wrong conjunction ‘but’ in terms of a logical meaning. In E, the noun phrase ‘department stores’ is awkwardly being used as the compared object. So, the answer is D.


●Answer to Q2: C
The blank should show the appropriate reason that can justify the fact that the giant deer had a large hump on its back as it was depicted in the prehistoric cave paintings. In this context, the only answer choice that can explain the discrepancy between the prehistoric cave paintings and the fossils is C. The other answer choices are all irrelevant.


●Answer to Q3: E
In the original condition, 1) and 2) a=x=2, b=y=1, yes, but a=x=-2, b=y=-1 no, NOT sufficient, therefore the best answer is E.


●Answer to Q4: C
Let T be tail and H be head, TTT or HHH=(1/2)(1/2)(1/2)+(1/2)(1/2)(1/2)=1/4, therefore the best answer is C.