LSAT 106 – Section 3 – Question 12

LSAT 106 - Section 3 - Question 12

June 1999

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Question QuickView	Type	Tags	Answer Choices	Curve	Question Difficulty	Psg/Game/S Difficulty	Explanation
PT106 S3 Q12	+LR	Except +Exc Must be false +MBF	A 3% 161 B 5% 165 C 74% 168 D 6% 163 E 12% 165	136 151 167	+Medium	148.198 +SubsectionMedium

Letter to the Editor: Your article on effective cockroach control states that vexone is effective against only one of the more than 4,000 cockroach species that infest North America: the German cockroach. In actuality, vexone has been utilized effectively for almost a decade against all of the species that infest North America. In testing our product, Roach Ender, which contains vexone, we have conducted many well-documented studies that prove this fact.

Summary

The letter writer claims that vexone is effective against all cockroach species in North America.

Notable Valid Inferences

This is a MBF Except question. This means all the wrong answers cannot be logically inferred from the stimulus. The right answer can be logically inferred from the stimulus.

A valid logical inference from the stimulus is that either the Editor’s article or the letter writer is incorrect about vexone’s effectiveness against cockroaches in North America.

Vexone is effective against only two species of cockroach that infest North America.

This conflicts with the letter writer’s view. He believes vexone is effective against the more than 4,000 cockroach species in North America.

Not all of the major species of cockroach that infest North America can be controlled by Roach Ender.

This conflicts with the letter writer’s view. He believes Roach Ender is effective against all cockroach species in North America.

Every species of cockroach that infests North America can be controlled by vexone.

This does not conflict with the letter writer’s view. He believes vexone is effective against all cockroach species in North America.

The cockroach infestations that have been combated with vexone have not included all of the cockroach species that infest North America.

This conflicts with the letter writer’s view. He claims that many well-documented studies demonstrate that vexone is effective against all cockroach species in North America.

Roach Ender was tested against exactly 4,000 cockroach species that infest North America.

This conflicts with the letter writer’s view. The letter writer believes that studies show vexone is effective against all cockroach species in North America, of which there are more than 4,000.

LSAT 106 – Section 3 – Question 12

LSAT 106 - Section 3 - Question 12

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LSAT PrepTest 106 Explanations

Section 1 - Logical Reasoning

Section 2 - Logical Reasoning

Section 3 - Logical Reasoning

Section 4 - Reading Comprehension

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