PT138.S3.Q20 > Question

SECTION 1 · rc

PASSAGE 1

Question 1 Question 2 Question 3 Question 4 Question 5 Question 6 Question 7

PASSAGE 2

Question 8 Question 9 Question 10 Question 11 Question 12 Question 13 Question 14

PASSAGE 3

Question 15 Question 16 Question 17 Question 18 Question 19 Question 20 Question 21 Question 22

PASSAGE 4

Question 23 Question 24 Question 25 Question 26 Question 27

SECTION 2 · lr

Question 1 Question 2 Question 3 Question 4 Question 5 Question 6 Question 7 Question 8 Question 9 Question 10 Question 11 Question 12 Question 13 Question 14 Question 15 Question 16 Question 17 Question 18 Question 19 Question 20 Question 21 Question 22 Question 23 Question 24 Question 25 Question 26

SECTION 3 · lr

SECTION 4 · lr

It’s unlikely that humans will ever colonize the galaxy. Why? Because if humans were to colonize the galaxy, there would be trillions of us. (The galaxy is huge.) If there there were trillions of us, then the overwhelming majority of humans ever to exist would exist during that galaxy-colonized period. We exist. There’s no reason to think we’re unrepresentative of all humans. Yet we do not live in the galaxy-colonized period. Hence, it’s unlikely that humans will ever colonize the galaxy.

Similar to the contrapositive argument. Author reasons that if something were to occur, it would have a consequence. But that consequence is false. Hence, that something is unlikely to occur.

Descriptively inaccurate. (A) thinks the author’s argument is that because we have not yet colonized the galaxy we will therefore probably not colonize the galaxy. Rather, a main premise is that we’re not alive during a galaxy-colonized period.

Descriptively inaccurate. The conclusion contradicts and rejects other people’s prediction that humans will one day colonize the galaxy.

Descriptively inaccurate. In fact, the author assumes just the opposite. His argument attempts to make a prediction about the future on the basis of present facts.

Descriptively accurate. Author infers that since we are not alive during the galaxy-colonized period, that the hypothesis that we will one day colonize the galaxy is probably false.

Descriptively inaccurate. Premise descriptor is inaccurate. Author does not base his prediction on “established human tendencies.” Instead, he bases it on probability and the total number of humans .

PrepTest 138 - Section 3 - Question 20

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