PT109.S4.Q5 > Question

SECTION 1 · 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

SECTION 2 · 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 Question 28

SECTION 3 · lr

SECTION 4 · lr

The moons of S4 all orbit the planet Alpha. This is because all moons orbit a planet in their solar system.

What if there were other planets (like Beta and Gamma) in S4 besides Alpha? The moons could orbit those planets instead. Consequently, the astronaut must assume that Alpha is the only planet in S4 to guarantee his conclusion.

The conclusion is about which planet the moon(s) orbit; the amount of moons is irrelevant.

What if all the moons are orbiting a different planet, like Beta, rather than Alpha? The astronaut needs an assumption that guarantees Alpha is the orbited planet.

All moons must orbit a planet in their solar system. So, if Alpha is the only planet in S4, all moons in S4 must orbit Alpha. Therefore, (C) guarantees the astronaut’s conclusion.

This leaves open the possibility that moons orbit other planets in S4, which would contradict the astronaut’s conclusion.

PrepTest 109 - Section 4 - Question 5

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