LSAT 124 – Section 2 – Question 25

LSAT 124 - Section 2 - Question 25

December 2007

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Target time: 1:11

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Question
QuickView		 Type Tags Answer
Choices		 Curve Question
Difficulty		 Psg/Game/S
Difficulty		 Explanation
PT124 S2 Q25
+LR
+Exp
Inference +Inf
Conditional Reasoning +CondR
Quantifier +Quant
A
3%
154
B
83%
164
C
3%
155
D
7%
157
E
4%
154
139
148
157
 +Medium 145.571 +SubsectionMedium

J.Y.’s explanation

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Most serious students are happy students, and most serious students go to graduate school. Furthermore, all students who go to graduate school are overworked.

Summary
Most serious students are happy.
Most serious students go to graduate school.
All graduate students are overworked.

Very Strongly Supported Conclusions
Most serious students are overworked.
Some happy students go to grad school.
Some happy students are overworked.

A
Most overworked students are happy students.
Unsupported. We know that some overworked students are happy, but we don’t know if most are. Let’s say there are 100 serious students: 51 are happy and 51 go to grad school. One student must be in both groups, but the other 99 could only be in the “happy” or “grad school” group!
B
Some happy students are overworked.
Must be true. Over 50% of serious students are happy; over 50% of serious students go to grad school and are therefore overworked. Thus, there must be overlap. Let’s say out of 100 serious students, 51 are happy and 51 go to grad school/are overworked. One student must be both!
C
All overworked students are serious students.
Unsupported. We know that most serious students are overworked, but that doesn’t tell us anything about how many overworked students are serious!
D
Some unhappy students go to graduate school.
Unsupported. While we can’t properly infer from the stimulus that all grad students are happy (although we can infer that some are), we also can’t rule out that possibility.
E
All serious students are overworked.
Unsupported. We can infer that most serious students are overworked, but there’s no evidence in the stimulus to support that all serious students are overworked.

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LSAT PrepTest 124 Explanations

Section 1 - Logical Reasoning

Section 2 - Logical Reasoning

Section 3 - Logical Reasoning

Section 4 - Reading Comprehension

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