LSAT 155 – Section 4 – Question 11

LSAT 155 - Section 4 - Question 11

November 2019

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Question
QuickView		 Type Tags Answer
Choices		 Curve Question
Difficulty		 Psg/Game/S
Difficulty		 Explanation
PT155 S4 Q11
+LR
Sufficient assumption +SA
Conditional Reasoning +CondR
Link Assumption +LinkA
A
20%
156
B
25%
158
C
5%
150
D
41%
164
E
10%
156
156
163
171
 +Hardest 147.589 +SubsectionMedium

When using a manufactured pattern to make clothing, a tailor alters the pattern to accommodate any future distortion of the fabric. Also, unless the clothing is to be worn by a person whose measurements precisely match the pattern size, the tailor alters the pattern to fit the wearer exactly. Thus, a professional tailor never blindly follows a pattern, but always adjusts the pattern to fit the wearer exactly.

Summary
The author concludes that a professional tailor always alters a pattern to fit the wearer. Why? Because any tailor always alters a pattern to fit the wearer, unless the wearer’s measurements already match the pattern to begin with.

Note that the first sentence provides no support for the conclusion.

Missing Connection
The conclusion is about professional tailors, but the premise refers only to tailors more broadly.

Also, the conclusion is that professional tailors always alter the pattern, no exceptions. But the premise allows for an exception: tailors in general alter the pattern unless the wearer’s measurements already match the pattern.

The premise would lead to the conclusion if we knew that for professional tailors specifically, the exception never applies. That is, for a professional tailor, the wearer’s measurements never match the pattern.

A
Most manufactured patterns do not already accommodate the future distortion of fabrics that shrink or stretch.
This says nothing about professional tailors and so can’t help us reach the conclusion. Also, fabric distortion is irrelevant. The argument is focused solely on how tailors change patterns to fit the wearer. Nothing in the stimulus suggests fabric distortion has any part in that.
B
At least some tailors who adjust patterns to the wearer and to the fabrics used are professional tailors.
Too weak. The fact that some professional tailors sometimes adjust the pattern to fit the wearer isn’t enough to reach the conclusion that all professional tailors always adjust the pattern. Also, note that any details about adjusting fabrics are irrelevant to the argument.

C
The best tailors are those most able to alter patterns to fit the wearer exactly.
This refers to the best tailors, but the conclusion is about professional tailors. Because (C) tells us nothing about professional tailors, it can’t help us reach the conclusion.
D
All professional tailors sew only for people whose measurements do not exactly match their chosen patterns.
We know from the argument’s premise that if a person’s measurements do not exactly match the chosen pattern, a tailor will always alter the pattern. (D) adds that professional tailors always sew for such people. So professional tailors always alter the pattern.

E
A professional tailor can always estimate exactly how much a fabric will shrink or stretch.
Fabric distortion is a red herring—it’s irrelevant to the argument. The argument is focused solely on how tailors change patterns to fit the wearer. Nothing in the stimulus suggests fabric distortion has any part in that.

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LSAT PrepTest 155 Explanations

Section 1 - Logical Reasoning

Section 2 - Logical Reasoning

Section 3 - Reading Comprehension

Section 4 - Logical Reasoning

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