Logical Reasoning

PrepTest 139 Section 1 Explanations

PrepTest 139 Section 1 is a Logical Reasoning section with 25 questions. It covers Flaw, Necessary Assumption, and Most Supported questions, spanning Easy to Hard difficulty. Each explanation breaks down the right answer, the wrong-answer traps, and what to practice next.

Question 1

Police chief: This department's

Question 2

Jake: Companies have recently introduced

EasyAgree/Disagree

Question 3

A study of the dietary habits

Question 4

Chemical-company employee

EasyNecessary Assumption

Question 5

Journalist: A recent study showed

Question 6

A company that imports and sells

EasyPrinciple-Strengthen

Question 7

The photographs that the store

EasyNecessary Assumption

Question 8

When weeding a vegetable garden

EasyPrinciple-Conform

Question 9

Doctor: It would benefit public

EasyMain Conclusion

Question 10

Large deposits of the rare

EasyMost Supported

Question 11

Editor: When asked to name

Question 12

One should apologize only

MediumMost Supported

Question 13

A small collection of copper-alloy

Question 14

Investigators have not proved

EasyParallel Flaw

Question 15

To reduce the mosquito population

Question 16

Roxanne promised Luke

EasyMost Supported

Question 17

Politician: A major social problem

Question 18

Editorial: In order to encourage

HardMust be False

Question 19

The goblin fern, which requires

HardNecessary Assumption

Question 20

Medical reporter: Studies have consistently

Question 21

Essayist: Winners of a Nobel

HardMust be True

Question 22

Company president: Most of our best

Question 23

Anthropologist: Every human culture

Question 24

In an effort to reduce underage

Question 25

Literary critic: A folktale

HardSufficient Assumption