GMAT exercise 18
●Question 1. Sentence Correction
Direction: Correct the underlined part
During the 1980s, it became clear that soliciting private funds was far more efficient for environmentalists who sought financial aid than to go to state or federal agencies.
A. that soliciting private funds was far more efficient for environmentalists who sought financial aid
B. that for environmentalists who sought financial aid, it was far more efficient to solicit private funds
C. that for environmentalists seeking financial aid, private organizations were far more efficient to go t
D. for environmentalists seeking financial aid, going to private organizations was far more efficient
E. for environmentalists who sought financial aid, private organizations were far more efficient
●Question 2. Critical Reasoning
In any negotiations between a party with limited aims and an opposing party with unlimited aims, the party with limited aims is bound to lose. This is so because the scope of a negotiating party’s aims determines the energy and the perseverance that will be brought to the negotiations by that party.
Which of the following is an assumption implicit in the passage above?
A. The intensity with which parties conduct negotiations affects the outcome of those negotiations.
B. Negotiations almost always pit against one another parties whose aims differ in scope.
C. The outcome of negotiations cannot be correctly predicted in advance.
D. A negotiator who has exceptionally high aims needs exceptional perseverance in order to avoid losing.
E. Negotiating parties are typically not aware of the scope of each other’s aims until the outcome is no longer in doubt.
●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.
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
There is an 8-polygons. what is the number of the diagonals of the 8-polygons ?
A. 20 B. 27 C. 32 D. 43 E. 45
●Answer to Q1: B
In A, C, D, and E, the same error is being committed because the phrase ‘than to go to state or federal agencies’ which is placed out of the line needs the expression that can be parallel. In those answer choices, there is no such expression that can accommodate the parallelism. In addition, ‘that’ should be in front of the whole expressions of D and E, respectively. Only in B, to-infinitive phrase ‘to solicit private funds’ is ideally parallel with ‘to go to state or federal agencies’. So, the answer is B.
●Answer to Q2: A
Without the hidden assumption that the energy and perseverance have to do with the outcome of a negotiation, the conclusion that the scope of a negotiating party’s aims is the determinant of winning a negotiation can’t be drawn. That’s because the statement pointed that the scope of a negotiating party’s aims entails the energy and perseverance. In terms of this, the answer choice of A is directly touching the assumption.
●Answer to Q3: E
Because the number of the variables is 2, the possible answer is C, 1) & 2) x=y=1, yes, but x=y=-4 no, therefore the best answer is E.
●Answer to Q4: A
The formula of the number of the diagonals of n-polygon is n(n-3)/2, n=8, 8(8-3)/2=4*5=20, therefore the best answer is A.