Why D is wrong ?
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?
- 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.
- There is no company that successfully competes with Ace Repairs for complex repair jobs.
- Ace Repairs’ warranty is good on first-time jobs but does not cover rework jobs.
- Ace Repairs does not in any way penalize mechanics who have worked on complex repair jobs that later had to be reworked.
- There is no category of repair jobs in which Ace Repairs invariably carries out first-time jobs satisfactorily.
simplify the argument —
More focused concentration in rework (and hence less during initial repairs) [NOT incompetence] ——> Initial repairs are inadequate
D is not relevant to the argument mentioned above. Even if it penalizes workers, it does not weaken the argument above that talks about THE REASON for inadequate initial repairs. (penalizing should have exactly the opposite effect — there should be less errors)
Thanks Aravind. Could you please help me why A is the answer ?
Author says Initial repairs are inadequate not because of lack of mechanic competence (as they perform well on rework). He assumes that the group of mechanics who perform first time jobs are same than group of mechanics who do rework jobs. If this is not true, it demolish the conclusion
Even though Option D doesn’t talk about the reason for inadequate repairs, I feel that a negation of the option weakens the conclusion.
The whole argument is structured in a way to give out proper reasoning for the need of rework.If a company penalizes, doesn’t it demolish the reasoning. Why should someone penalize when you have clear stated reasons for rework?
I am in a tie between Option A and D,it would be great if someone could set it right.
