LSAT 154 – Section 4 – Question 21
LSAT 154 - Section 4 - Question 21
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Question QuickView |
Type | Tags | Answer Choices |
Curve | Question Difficulty |
Psg/Game/S Difficulty |
Explanation |
---|---|---|---|---|---|---|---|
PT154 S4 Q21 |
+LR
| Flaw or descriptive weakening +Flaw Causal Reasoning +CausR Link Assumption +LinkA Math +Math | A
60%
166
B
26%
162
C
3%
152
D
8%
155
E
2%
152
|
147 158 170 |
+Harder | 147.301 +SubsectionMedium |
Summarize Argument
The author concludes that new, more complicated computer control systems for controlling air bags will probably increase the likelihood of accidental air bag inflation. This is because the new systems have more ways to fail than the older air bag control systems.
Identify and Describe Flaw
The author assumes that have a greater number of ways to fail implies a greater overall chance of failing. This doesn’t have to be true. Maybe, for example, there are now twice as many ways to fail. But each of those ways might have a tiny chance of occurring, such that the overall chance of failure is not necessarily higher than the chance that older systems would fail. Older systems might have had just one or two ways to fail, but each way could have had a very high chance of occurring.
A
It fails to address adequately the possibility that the likelihood of a system’s failing need not increase with the number of ways in which it can fail.
This possibility points out why the conclusion doesn’t follow. The chance a system fails does not have to increase just because the number of ways to fail increases. The overall chance of failure might go down, even if the number of ways to fail goes up.
B
It takes for granted that any failure in an air bag’s computer control system will cause that air bag to inflate accidentally.
The author believes a more complex system involving more ways of failure will involve more instances of air bag inflation. But this doesn’t mean the author thinks every failure involves air bag inflation. There can be some failures that don’t lead to inflated air bags.
C
It fails to address adequately the possibility that air bags may often accidentally inflate even when their computer control systems do not fail.
This possibility doesn’t undermine the argument. There can be accidental inflation even when systems don’t fail. That doesn’t undermine the belief that a greater number of ways to fail implies a greater chance of accidental air bag inflation.
D
It overlooks the possibility that, even if the new computer control systems exacerbate the problems with accidental air bag inflation, they may have advantages that outweigh this disadvantage.
The author’s conclusion is not about whether we should implement the new control systems. So whether there are advantages or disadvantages to the new system have no bearing on whether the new system is more likely to lead to accidental air bag inflation.
E
It overlooks the possibility that, even if air bags occasionally cause accidental injuries, they may nonetheless be responsible for preventing many more injuries than they cause.
This possibility doesn’t undermine the argument. Whether airbags prevent more injuries than they cause doesn’t affect whether there will be more accidental air bag inflation with the more complex system.
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LSAT PrepTest 154 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
- Question 26
Section 2 - 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 3 - 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 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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