LSAT 130 – Section 1 – Question 25

LSAT 130 - Section 1 - Question 25

September 2009

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Question
QuickView		 Type Tags Answer
Choices		 Curve Question
Difficulty		 Psg/Game/S
Difficulty		 Explanation
PT130 S1 Q25
+LR
Sufficient assumption +SA
Conditional Reasoning +CondR
Link Assumption +LinkA
A
52%
168
B
7%
159
C
21%
160
D
11%
161
E
10%
159
157
164
171
 +Hardest 147.03 +SubsectionMedium

If a wig has any handmade components, it is more expensive than one with none. Similarly, a made-to-measure wig ranges from medium-priced to expensive. Handmade foundations are never found on wigs that do not use human hair. Furthermore, any wig that contains human hair should be dry-cleaned. So all made-to-measure wigs should be dry-cleaned.

Summary
The author concludes that all made-to-measure wigs should be dry-cleaned.
This is based on the following:
Made-to-measure wigs range from medium-priced to expensive.
If a wig has a handmade foundation, then it uses human hair. (”Hand made foundations are never found on wigs that don’t use human hair.”)
Wigs that contain human hair should be dry-cleaned.

Missing Connection
The last two premises, together, establish that if a wig has a handmade foundation, then it should be dry-cleaned. So if we want to conclude that made-to-measure wigs should be dry-cleaned, we want to show that made-to-measure wigs have a handmade foundation. How can we do that?
Well, the first premise tells us that made-to-measure wigs range from medium-priced to expensive. If we can show that “medium-priced to expensive” implies “handmade foundation,” that will show that made-to-measure wigs have a handmade foundation, which in turn will show that they should be dry-cleaned.

A
Any wig whose price falls in the medium-priced to expensive range has a handmade foundation.
Since we know made-to-measure wigs are in the medium-priced to expensive range, (A) establishes that these wigs have a handmade foundation. Combine that with the last two premises, and we can conclude that made-to-measure wigs should be dry-cleaned.
B
If a wig’s foundation is handmade, then it is more expensive than one whose foundation is not handmade.
(B) doesn’t establish anything about made-to-measure wigs or wigs that are medium-priced to expensive. So we’d still have no way to conclude that made-to-measure wigs should be dry-cleaned.
C
A wig that has any handmade components should be dry-cleaned.
(C) doesn’t establish anything about made-to-measure wigs or wigs that are medium-priced to expensive. So we’d still have no way to conclude that made-to-measure wigs should be dry-cleaned.
D
If a wig’s foundation is handmade, then its price is at least in the medium range.
(D) doesn’t establish anything about made-to-measure wigs or wigs that are medium-priced to expensive. So we’d still have no way to conclude that made-to-measure wigs should be dry-cleaned. Although (D) shows that wigs with handmade foundations are at least medium-priced, this doesn’t imply that wigs that are medium-priced to expensive must have a handmade foundation.
E
Any wig that should be dry-cleaned has a foundation that is handmade.
We want to conclude that made-to-measure wigs should be dry cleaned. An answer that tells us what is true IF a wig should be dry-cleaned doesn’t establish that certain wigs should be dry-cleaned.

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LSAT PrepTest 130 Explanations

Section 1 - Logical Reasoning

Section 2 - Reading Comprehension

Section 3 - Logical Reasoning

Section 4 - Logical Reasoning

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