Prep19, section2, #2

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Prep19, section2, #2

Postby soyeonjeon » Mon Oct 22, 2012 4:43 am

Prep19, section2, #2,
With regard to this one, I do not understand first what C means and second why E fails to be the correct answer. I did pick C as the answer but now that I reexamine it, I do not understand what C means. Thanks always.

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Joined: Sun Aug 26, 2012 9:47 pm

Re: Prep19, section2, #2

Postby ws81086n » Mon Oct 22, 2012 6:21 am

Background: Lots of drivers violate speed limits
Premise: Exceeding speed limits is a significant factor in most accidents
Conclusion: Installing speed-limit governors would prevent most accidents

Negating choice (C), we can see that it would destroy the argument, because if exceeding the speed limit is "often" (negation of seldom) a necessary condition of avoiding an accident, it follows that "most" accidents will not be prevented.

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