LSAT 157 – Section 2 – Question 19

LSAT 157 - Section 2 - Question 19

June 2020

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Question
QuickView		 Type Tags Answer
Choices		 Curve Question
Difficulty		 Psg/Game/S
Difficulty		 Explanation
PT157 S2 Q19
+LR
Must be true +MBT
Conditional Reasoning +CondR
A
11%
151
B
9%
150
C
49%
163
D
28%
153
E
3%
150
149
158
167
 +Harder 143.482 +SubsectionEasier

Committee chairperson: No new course will be approved for next year’s schedule unless a proposal for it has already been received either by this committee or by Dean Wilson. Dean Wilson has received only one new course proposal, and all of the new course proposals that this committee has received are for upper-level courses. It has been decided that, beginning next year, all upper-level courses will have prerequisites.

Summary

The stimulus can be diagrammed as follows:

Notable Valid Inferences

If the proposal for a new course was received by the committee, then that course will have a prerequisite.

If multiple new courses are proposed for next year, at least some of these proposals will be reviewed by the committee (and thus be an upper level course with a prerequisite).

A
If there are no new upper-level courses next year, then there will be no new courses next year that have prerequisites.

Could be false. We know that all upper level courses have prerequisites, but there could be courses that have prerequisites that aren’t upper level courses. (A) confuses the sufficient and necessary conditions in the relationship “all upper level courses will have prerequisites.”

B
If all of the new courses next year are upper-level courses, then all of the new course proposals submitted to the committee will have been approved.

Could be false. Saying that all new courses are upper level courses doesn’t mean that all upper level course proposals that were submitted were approved. It could still be the case that some of the new course proposals submitted to the committee were rejected.

C
If there is more than one new course next year, at least one of them will be a course that has a prerequisite.

Must be true. Dean Wilson received only one proposal, so if more than one proposal was approved, then we know at least one of the proposals was received by the committee, and all proposals received by the committee require prerequisites.

D
If the new course proposal that Dean Wilson received is for an upper-level course, then all courses offered next year will have prerequisites.

Could be false. It could be the case that there are pre-existing lower level courses that don’t have prerequisites.

E
If there are no new upper-level courses next year, then the new course proposal that was submitted to Dean Wilson will have been approved.

Could be false. If we know that no new upper level courses were approved, then the committee did not approve any new courses. However, it could still be the case that Dean Wilson received (and rejected) a proposal for an upper level course.

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LSAT PrepTest 157 Explanations

Section 1 - Reading Comprehension

Section 2 - Logical Reasoning

Section 3 - Logical Reasoning

Section 4 - Reading Comprehension

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