LSAT 134 – Section 1 – Question 18

LSAT 134 - Section 1 - Question 18

October 2011

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Question
QuickView		 Type Tags Answer
Choices		 Curve Question
Difficulty		 Psg/Game/S
Difficulty		 Explanation
PT134 S1 Q18
+LR
Inference +Inf
Conditional Reasoning +CondR
A
1%
160
B
86%
165
C
5%
161
D
4%
156
E
4%
156
136
146
156
 +Medium 147.067 +SubsectionMedium

Traffic engineers have increased the capacity of the Krakkenbak Bridge to handle rush-hour traffic flow. The resultant increase in rush-hour traffic flow would not have occurred had the city not invested in computer modeling technology last year at the request of the city’s mayor, and the city’s financial predicament would not have been resolved if the traffic flow across the bridge during rush hour had not been increased.

Summary
Increasing the capacity of Krakkenbak Bridge caused an increase in rush-hour traffic flow.
If the city hadn’t invested in computer modeling technology last year, this traffic flow wouldn’t have increased.
If this traffic flow hadn’t increased, the city’s financial predicament wouldn’t have been resolved.

Very Strongly Supported Conclusions
If the city hadn’t invested in computer modeling technology, then the financial predicament wouldn’t have been resolved.
Since the financial predicament was resolved, this means that rush-hour traffic flow did increase and the city did invest in computer modeling technology.

A
The city’s financial predicament would not have been resolved had the city chosen a competing computer modeling software package.
Unsupported. If the city hadn’t invested in computer modeling technology, then the financial predicament wouldn’t have been resolved. But the stimulus doesn't say anything about which software the company needed to choose; a competing software might have worked just as well.
B
The city’s financial predicament would not have been resolved had the city not invested in computer modeling technology.
Very strongly supported. By chaining the conditional claims, we see that if the city hadn’t invested in computer modeling technology, then rush-hour traffic flow wouldn’t have increased, and the financial predicament wouldn’t have been resolved.
C
On an average day, more traffic crosses the Krakkenbak Bridge this year as compared to last year.
Unsupported. Just because rush-hour traffic flow increased doesn’t mean that overall traffic increased. There could be the same amount of traffic crossing the bridge this year, just more traffic flow at rush-hour.
D
Traffic flow across the Krakkenbak Bridge during rush hour would not have increased had the city’s mayor not made investing in computer modeling technology the highest budgetary priority last year.
Unsupported. Rush-hour traffic flow wouldn’t have increased if the city hadn’t invested in computer modeling technology. But just because the city invested in this technology doesn’t mean that it was their highest budgetary priority last year.
E
The city’s mayor was a proponent of investing in computer modeling technology because of the city’s need to increase traffic flow across the Krakkenbak Bridge during rush hour.
Unsupported. We don’t know why the mayor supported investing in computer modeling technology. It did increase rush-hour traffic flow, but the mayor might’ve had other reasons for supporting it.

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LSAT PrepTest 134 Explanations

Section 1 - Logical Reasoning

Section 2 - Logical Reasoning

Section 3 - Logical Reasoning

Section 4 - Reading Comprehension

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