Logical Reasoning

PrepTest 109 Section 1 Explanations

PrepTest 109 Section 1 is a Logical Reasoning section with 25 questions. It covers Weaken, Necessary Assumption, and Flaw questions, spanning Easy to Hard difficulty. Each explanation breaks down the right answer, the wrong-answer traps, and what to practice next.

Question 1

Marmosets are the only primates

Question 2

Sheila: It has been argued

Question 3

Juan: Unlike the ancient Olympic

EasyAgree/Disagree

Question 4

Juan: Unlike the ancient Olympic

Question 5

A recent national study of

MediumMain Conclusion

Question 6

A recent national study of

Question 7

Consultant: Most workers do not

MediumMost Supported

Question 8

Few animals brave the midday

Question 9

The same task triggers different

MediumMost Supported

Question 10

Art historian: Great works of

HardNecessary Assumption

Question 11

Researchers have discovered that caffeine

HardMust be True

Question 12

A nationwide poll of students,

Question 13

Ethicist: Studies have documented the

HardNecessary Assumption

Question 14

After the United Nations Security

Question 15

People who are good at

EasyParallel Flaw

Question 16

Notice to subscribers: In order

HardMust be True

Question 17

Expert witness: Ten times, and

Question 18

The use of space-based satellites

HardPrinciple-Conform

Question 19

Historian: The spread of literacy

MediumNecessary Assumption

Question 20

Recently discovered prehistoric rock paintings

Question 21

Attacks on an opponent’s character

HardPrinciple-Strengthen

Question 22

Lawyer: Did Congleton assign the best

Question 23

An air traveler in Beijing

Question 24

Supervisor: Our next budget proposal

Question 25

The number of airplanes equipped