Logical Reasoning

PrepTest 15 Section 2 Explanations

PrepTest 15 Section 2 is a Logical Reasoning section with 24 questions. It covers Flaw, Necessary Assumption, and Paradox questions, spanning Easy to Hard difficulty. Each explanation breaks down the right answer, the wrong-answer traps, and what to practice next.

Question 1

Walter: Although cigarette smoking

EasySufficient Assumption

Question 2

Physicist: The claim that low-temperature

Question 3

A certain strain of bacteria

MediumStrengthen

Question 4

A recent study monitored the blood pressure

EasyParallel Flaw

Question 5

Of the five bill collectors

Question 6

A primate jawbone found in Namibia

EasyNecessary Assumption

Question 7

Workers may complain about many things

Question 8

Would it be right for the

HardMain Conclusion

Question 9

Over the past twenty-five years

MediumMost Supported

Question 10

Ten thousand years ago many communities

Question 11

Should a journalist’s story begin

HardMain Conclusion

Question 12

Individual pyrrole molecules readily join

MediumMust be True

Question 13

Pedigreed dogs, including those officially

HardPrinciple-Strengthen

Question 14

Pedigreed dogs, including those officially

Question 15

In rheumatoid arthritis, the body’s immune system

MediumMost Supported

Question 16

In their native habitat, amaryllis

HardNecessary Assumption

Question 17

Most people believe that yawning

Question 18

Everyone who is a gourmet cook

Question 19

Without information that could only

Question 20

S. R. Evans: A few critics have dismissed

Question 21

Claim: Country X’s government lowered tariff

HardPrinciple-Strengthen

Question 22

A scientist made three observations:

Question 23

No computer will ever be able

EasyNecessary Assumption

Question 24

People were asked in a survey