GMAT Exercise - 9
●Question 1. Sentence Correction
Direction: Correct the underlined part
Judge Forer recognizes that the American judicial system provides more safeguards for accused persons than does the legal system of any other country, but she believes there is a great disparity between the systems of justice accorded rich and poor.
A. for accused persons than does the legal system of any other country
B. to accused persons as the legal system of any country
C. for accused persons as the legal system of any country
D. to accused persons as the legal system of any other country
E. for accused persons than the legal system of any other country
●Question 2. Critical Reasoning
Shipping Clerk: The five specially ordered shipments sent out last week were sent out on Thursday. Last week, all of the shipments that were sent out on Friday consisted entirely of building supplies, and the shipping department then closed for the weekend. Four shipments were sent to Truax Construction last week, only three of which consisted of building supplies.
If the shipping clerk’s statements are true, which of the following must also be true?
A. At least one of the shipments sent to Truax Construction last week was specially ordered.
B. At least one of last week’s specially ordered shipments did not consist of building supplies.
C. At least one of the shipments sent to Truax Construction was not sent out on Thursday of last week.
D. At least one of the shipments that were sent out on Friday of last week was sent to Truax Construction.
E. At least one of the shipments sent to Truax Construction last week was sent out before Friday.
●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.
If x is non-zero integer, what is the value of x?
Condition 1) x^x=1
Condition 2) x^(2x)=1
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
What is the number of the diagonals of the 10-polygons ?
A. 20 B. 27 C. 35 D. 43 E. 45
●Answer to Q1: A
With the preceding expression ‘more safeguards’ given, the answer choices B, C, and D are committing a decisive error of using the subordinate conjunction ‘as’ instead of ‘than’. Then, A, compared with E, is more effective because it is using the verb ‘does’, which makes the comparison between ‘the American judicial system’ and ‘the legal system of any other country’ clearer.
●Answer to Q2: E
The goal of this question is to find an answer choice that must be logically correct provided a list of premises. The only choice that must be true is choice E. Four shipments were sent to Truax Construction last week and three out four shipments were building supplies. However, since only building supplies were sent out on Friday, at least one of the shipments must had sent out before Friday. The trick on this question is that only two types of shipments, specially ordered and building supplies, those are sent out on Thursday and Friday, respectively, are mentioned on the argument. Once you figure it out the problem is relatively easy one.
●Answer to Q3: A
Condition 1) x=1. Sufficient,
Condition 2) x=1, -1. NOT sufficient, therefore the best answer is A.
●Answer to Q4: C
Because the formula of the number of n-polygon’s daigonals is n(n-3)/2, n=10, 10(10-3)/2=35, therefore the best answer is C. 35
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