LSAT 137 – Section 3 – Question 15

LSAT 137 - Section 3 - Question 15

October 2012

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Question
QuickView		 Type Tags Answer
Choices		 Curve Question
Difficulty		 Psg/Game/S
Difficulty		 Explanation
PT137 S3 Q15
+LR
+Exp
Main conclusion or main point +MC
Net Effect +NetEff
Link Assumption +LinkA
A
2%
156
B
1%
155
C
10%
156
D
85%
165
E
2%
155
138
147
156
 +Medium 146.416 +SubsectionMedium

Technologically, it is already possible to produce nonpolluting cars that burn hydrogen rather than gasoline. But the national system of fuel stations that would be needed to provide the hydrogen fuel for such cars does not yet exist. However, this infrastructure is likely to appear and grow rapidly. A century ago no fuel-distribution infrastructure existed for gasoline-powered vehicles, yet it quickly developed in response to consumer demand.

Summarize Argument
The infrastructure for hydrogen-powered cars is likely to grow quickly, even though it doesn’t exist yet. This is because, just as gas stations expanded rapidly when gasoline-powered vehicles became popular, we expect hydrogen fuel stations will follow the same pattern.

Identify Conclusion
The fuel infrastructure for hydrogen-powered cars will likely develop and expand quickly.

A
It is already technologically possible to produce nonpolluting cars that burn hydrogen rather than gasoline.
This is context. It provides background information on the current feasibility of hydrogen-powered cars and sets the stage for the author's argument that the fuel-distribution infrastructure for these cars will likely develop quickly.
B
The fuel-distribution infrastructure for hydrogen-powered cars still needs to be created.
This is context. The need to create a fuel infrastructure for hydrogen-powered cars sets the stage for the author's argument that such infrastructure will develop and expand quickly.
C
If a new kind of technology is developed, the infrastructure needed to support that technology is likely to quickly develop in response to consumer demands.
This is an unstated premise. The author assumes that, like the rapid development of fuel infrastructure for gas-powered cars, the same will happen for hydrogen-powered cars because the infrastructure needed to support new technologies quickly develops due to consumer demands.
D
The fuel-distribution infrastructure for hydrogen-powered cars is likely to appear and grow rapidly.
This captures the argument's main conclusion. The stimulus concludes that "this infrastructure"—referring to the fuel infrastructure needed for hydrogen-powered cars—"is likely to appear and grow rapidly," which this answer choice correctly restates.
E
Hydrogen-powered vehicles will be similar to gasoline-powered vehicles with regard to the amount of consumer demand for their fuel-distribution infrastructure.
The stimulus doesn't make this argument. It concludes that consumer demand will drive the growth of hydrogen fuel infrastructure, similar to gasoline, but it doesn't claim that both will have the same level of demand—only that each has enough to spur rapid infrastructure growth.

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LSAT PrepTest 137 Explanations

Section 1 - Reading Comprehension

Section 2 - Logical Reasoning

Section 3 - Logical Reasoning

Section 4 - Logical Reasoning

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