Complex repair jobs warranty. Tough one!

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Complex repair jobs warranty. Tough one!

by amysky_0205 » Sun Dec 30, 2012 10:28 pm
A significant number of complex repair jobs carried out by Ace Repairs have to be reworked under the company's warranty. The reworked jobs are invariably satisfactory. When initial repairs are inadequate, therefore, it is not because the mechanics lack competence; rather, there is clearly a level of focused concentration that complex repairs require that is elicited more reliably by rework jobs than by first-time jobs.

The argument above assumes which of the following?

A. There is no systematic difference in membership between the group of mechanics who do first-time jobs and the group of those who do rework jobs.
B. There is no company that successfully competes with Ace Repairs for complex repair jobs.
C. Ace Repairs' warranty is good on first-time jobs but does not cover rework jobs.
D. Ace Repairs does not in any way penalize mechanics who have worked on complex repair jobs that later had to be reworked.
E. There is no category of repair jobs in which Ace Repairs invariably carries out first-time jobs satisfactorily.

OA:A

can someone explain this in detail?
thank u���
Source: — Critical Reasoning |

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by abctongji » Sun Dec 30, 2012 10:46 pm
amysky_0205 wrote:A significant number of complex repair jobs carried out by Ace Repairs have to be reworked under the company's warranty. The reworked jobs are invariably satisfactory. When initial repairs are inadequate, therefore, it is not because the mechanics lack competence; rather, there is clearly a level of focused concentration that complex repairs require that is elicited more reliably by rework jobs than by first-time jobs.

The argument above assumes which of the following?

A. There is no systematic difference in membership between the group of mechanics who do first-time jobs and the group of those who do rework jobs.
B. There is no company that successfully competes with Ace Repairs for complex repair jobs.
C. Ace Repairs' warranty is good on first-time jobs but does not cover rework jobs.
D. Ace Repairs does not in any way penalize mechanics who have worked on complex repair jobs that later had to be reworked.
E. There is no category of repair jobs in which Ace Repairs invariably carries out first-time jobs satisfactorily.

OA:A

can someone explain this in detail?
thank u���
I chose E. A tough question. I have no clues in this. Needs more explanations.

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by Perfectus » Tue Jan 01, 2013 7:30 am
I chose A, but let me try to explain:

I think the key phrase that made me pick A is "rather, there is clearly a level of focused concentration that complex repairs require that is elicited more reliably by rework jobs than by first time jobs."
"rather" came after ";" So I know Ace Repair isn't blaming the fault on its mechanics, but rather that the work is really complicated on the 1st time, than 2nd time.

B) no one mentioned that Ace Repair has competition.
C) It didn't mention the warranty will not cover rework.
D) Doesn't match my observation stated above.
E) "No category of repair jobs" is wrong. It only mentioned "complex repair jobs"