LSAT 148 – Section 4 – Question 20
LSAT 148 - Section 4 - Question 20
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| Question QuickView |
Type | Tags | Answer Choices |
Curve | Question Difficulty |
Psg/Game/S Difficulty |
Explanation |
|---|---|---|---|---|---|---|---|
| PT148 S4 Q20 |
+LR
| Sufficient assumption +SA Quantifier +Quant Link Assumption +LinkA Eliminating Options +ElimOpt | A
2%
154
B
13%
156
C
2%
153
D
1%
152
E
81%
164
|
145 151 158 |
+Medium | 147.694 +SubsectionMedium |
Summary
The author concludes that some students taking FL 205 are not FL majors. Why? Because of the following:
Some students in FL 205 are taking BIO 218.
All students in BIO 218 are bio majors.
Some students in FL 205 are taking BIO 218.
All students in BIO 218 are bio majors.
Missing Connection
The premises, together, allow us to infer that some students in FL 205 are bio majors (because some FL 205 students are in BIO 218, and everyone in BIO 218 is a bio major).
But how to do we get from that inference — some FL 205 students are bio majors — to the conclusion that some FL 205 students are not FL majors?
Notice that “not FL major” is a new concept in the conclusion. At a minimum, we know the correct answer should tell us who is not an FL major.
To go further, the specific connection we want is to get from “bio major” to “not FL major.” This would allow us to conclude that some FL 205 students are not FL majors.
But how to do we get from that inference — some FL 205 students are bio majors — to the conclusion that some FL 205 students are not FL majors?
Notice that “not FL major” is a new concept in the conclusion. At a minimum, we know the correct answer should tell us who is not an FL major.
To go further, the specific connection we want is to get from “bio major” to “not FL major.” This would allow us to conclude that some FL 205 students are not FL majors.
A
French Literature 205 is a required course for French-literature majors.
(A) doesn’t establish who is not an FL major. It leaves open the possibility that the students taking FL 205 are FL majors.
B
Only biology majors are allowed to take Biology 218.
We already know some FL 205 students are biology majors. What we want to know is that they’re not FL majors. (B) doesn’t establish that.
C
There are more biology majors than there are French-literature majors.
The comparative number of bio and FL majors doesn’t establish who is not an FL major.
D
There are more French-literature majors than there are biology majors.
The comparative number of bio and FL majors doesn’t establish who is not an FL major.
E
It is not possible to major in both biology and French literature.
We know some FL 205 students are bio majors. According to (E), you can’t be both a bio major and FL major. So those FL 205 students who are bio majors are NOT FL majors.
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LSAT PrepTest 148 Explanations
Section 1 - Logical Reasoning
- Question 01
- Question 02
- Question 03
- Question 04
- Question 05
- Question 06
- Question 07
- Question 08
- Question 09
- Question 10
- Question 11
- Question 12
- Question 13
- Question 14
- Question 15
- Question 16
- Question 17
- Question 18
- Question 19
- Question 20
- Question 21
- Question 22
- Question 23
- Question 24
- Question 25
Section 2 - Reading Comprehension
- Passage 1 – Passage
- Passage 1 – Questions
- Passage 2 – Passage
- Passage 2 – Questions
- Passage 3 – Passage
- Passage 3 – Questions
- Passage 4 – Passage
- Passage 4 – Questions
Section 3 - Logical Reasoning
- Question 01
- Question 02
- Question 03
- Question 04
- Question 05
- Question 06
- Question 07
- Question 08
- Question 09
- Question 10
- Question 11
- Question 12
- Question 13
- Question 14
- Question 15
- Question 16
- Question 17
- Question 18
- Question 19
- Question 20
- Question 21
- Question 22
- Question 23
- Question 24
- Question 25
- Question 26
Section 4 - Logical Reasoning
- Question 01
- Question 02
- Question 03
- Question 04
- Question 05
- Question 06
- Question 07
- Question 08
- Question 09
- Question 10
- Question 11
- Question 12
- Question 13
- Question 14
- Question 15
- Question 16
- Question 17
- Question 18
- Question 19
- Question 20
- Question 21
- Question 22
- Question 23
- Question 24
- Question 25
- Question 26
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