Question 1

Y has been believed to cause Z. A new report, noting that Y and Z are often observed to be preceded by X, suggests that X, not Y, may be the cause of Z. Which of the following further observations would best support the new report’s suggestion?

Options :

A : In cases where X occurs but Y does not, X is usually followed by Z.

B : In cases where X occurs, followed by Y, Y is usually followed by Z.

C : In cases where Y occurs but X does not, Y is usually followed by Z.

D : In cases where Y occurs but Z does not, Y is usually preceded by X.

E : In cases where Z occurs, it is usually preceded by X and Y.

Answer: A

Question 2

A milepost on the towpath read “21” on the side facing the hiker as she approached it and “23” on its back. She reasoned that the next milepost forward on the path would indicate that she was halfway between one end of the path and the other. However, the milepost one mile further on read “20” facing her and “24” behind. Which of the following, if true, would explain the discrepancy described above?

Options :

A : The numbers on the next milepost had been reversed

B : The numbers on the mileposts indicate kilometers, not miles

C : The facing numbers indicate miles to the end of the path, not miles from the beginning.

D : A milepost was missing between the two the hiker encountered.

E : The mileposts had originally been put in place for the use of mountain bikers, not for hikers.

Answer: C

Question 3

What is the sum of 7 consecutive integers?

(1) The median of the seven integers is 8.

(2) One of the integers is 7.

Options :

A : Statement (1) BY ITSELF is sufficient to answer the question, but statement (2) by itself is not.

B : Statement (2) BY ITSELF is sufficient to answer the question, but statement (1) by itself is not.

C : Statements (1) and (2) TAKEN TOGETHER are sufficient to answer the question, even though NEITHER statement BY ITSELF is sufficient

D : Either statement BY ITSELF is sufficient to answer the question

E : Statements (1) and (2) TAKEN TOGETHER are NOT sufficient to answer the question, requiring more data pertaining to the problem.

Answer: A

Question 4

How long does it take to drive from the factory to the warehouse?

(1) It takes 15 minutes to drive from the factory to the harbor.

(2) It takes 25 minutes to drive from the warehouse to the harbor.

Options :

A : Statement (1) BY ITSELF is sufficient to answer the question, but statement (2) by itself is not

B : Statement (2) BY ITSELF is sufficient to answer the question, but statement (1) by itself is not.

C : Statements (1) and (2) TAKEN TOGETHER are sufficient to answer the question, even though NEITHER statement BY ITSELF is sufficient

D : Either statement BY ITSELF is sufficient to answer the question.

E : Statements (1) and (2) TAKEN TOGETHER are NOT sufficient to answer the question, requiring more data pertaining to the problem.

Answer: A

Question 5

Options :

A : Statement (1) BY ITSELF is sufficient to answer the question, but statement (2) by itself is not

B : Statement (2) BY ITSELF is sufficient to answer the question, but statement (1) by itself is not

C : Statements (1) and (2) TAKEN TOGETHER are sufficient to answer the question, even though NEITHER statement BY ITSELF is sufficient.

D : Either statement BY ITSELF is sufficient to answer the question

E : Statements (1) and (2) TAKEN TOGETHER are NOT sufficient to answer the question, requiring more data pertaining to the problem.

Answer: B