Flawed Resoning Pattern

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Flawed Resoning Pattern

by pharmxanthan » Thu Jul 29, 2010 4:27 pm
Insurance industry statistics demonstrate that cars with alarms or other antitheft devices are more likely to be stolen or broken into than cars without such devices or alarms. Therefore antitheft devices do not protect cars against thieves.

The pattern of flawed reasoning in the argument above is most similar to that in which one of the following?

C) Studies reveal that people who are regular users of libraries purchase more books per year than do people who do not use libraries regularly. Hence using libraries regularly does not reduce the number of books that library patrons purchase.

D) Since youngsters who read voraciously are more likely to have defective vision than youngsters who do not read very much, it follows that children who do not like to read usually have perfect vision.
Source: — Critical Reasoning |

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by indiantiger » Thu Jul 29, 2010 5:57 pm
I will go with C
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by arora007 » Thu Jul 29, 2010 9:31 pm
seems C to me too...
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by outreach » Thu Jul 29, 2010 9:43 pm
C is correct


D) Since youngsters who read voraciously are more likely to have defective vision than youngsters who do not read very much, it follows that children who do not like to read usually have perfect vision.
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by pharmxanthan » Fri Jul 30, 2010 8:12 pm
outreach wrote:C is correct


D) Since youngsters who read voraciously are more likely to have defective vision than youngsters who do not read very much, it follows that children who do not like to read usually have perfect vision.

What is particular about the bold part of choice D? I an trying to find a strategy to answer this type of questions.
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by reply2spg » Fri Jul 30, 2010 8:45 pm
IMO C here. D is exact opposite of what passage is talking about
pharmxanthan wrote:Insurance industry statistics demonstrate that cars with alarms or other antitheft devices are more likely to be stolen or broken into than cars without such devices or alarms. Therefore antitheft devices do not protect cars against thieves.

The pattern of flawed reasoning in the argument above is most similar to that in which one of the following?

C) Studies reveal that people who are regular users of libraries purchase more books per year than do people who do not use libraries regularly. Hence using libraries regularly does not reduce the number of books that library patrons purchase.

D) Since youngsters who read voraciously are more likely to have defective vision than youngsters who do not read very much, it follows that children who do not like to read usually have perfect vision.
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by pharmxanthan » Sat Jul 31, 2010 5:23 pm
OA is C