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# Investigators concluded that human failure was not

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Director
Joined: 21 Dec 2010
Posts: 511

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15 May 2011, 11:36
saorabh wrote:
Investigators concluded that human failure was not responsible for the fatal airplane crash last August, and since that time new and more stringent rules for identifying and reporting mechanical problems have been in effect. That accounts for the fact that reports of airplane mechanical problems have increased in frequency by 50 percent since last August.
Which one of the following is an assumption underlying the argument in the passage?
(A) Airplane travel is still relatively safe, despite the increase in reported mechanical problems.
(B) Mechanical problems in airplanes have increased dramatically since last August.
(C) Mechanical problems in airplanes have not increased by 50 percent since last August.
(D) Airlines are less reluctant to report mechanical problems than they previously were.
(E) Mechanical problems in airplanes have become easier to detect since last August.

OA in a while

The OA is C , i have confirmed , this is a question from LSAT set1 .

the question is clear enough ,
the conclusion is a cause and effect relationship i.e cause X-> effect Y.
but negating option C implies an alternate cause Z -> effect Y .
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What is of supreme importance in war is to attack the enemy's strategy.

Intern
Joined: 23 Mar 2011
Posts: 8

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17 May 2011, 07:39
Agree with C
Manager
Joined: 12 Oct 2009
Posts: 166

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17 May 2011, 19:31
Stuck between D and C
Board of Directors
Joined: 01 Sep 2010
Posts: 3416

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21 May 2011, 11:20
For me D

More strict policies + an increase of 50% in the reports: the companies says more about problems

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# Investigators concluded that human failure was not

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