A worker for a power company trims the branches of trees : GMAT Critical Reasoning (CR)
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# A worker for a power company trims the branches of trees

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Director
Joined: 11 Jun 2007
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A worker for a power company trims the branches of trees [#permalink]

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19 Nov 2007, 13:47
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A worker for a power company trims the branches of trees that overhang power lines as a prevention against damage to the lines anticipated because of the impending stormy season. The worker reasons that there will be no need for her to trim the overhanging branches of a certain tree because the owners of the tree have indicated that they might cut it down anyway.

Which one of the following decisions is based on flawed reasoning that is most similar to the worker’s flawed reasoning?

(A) A well inspector has a limited amount of time to inspect the wells of a town. The inspector reasons that the wells should be inspected in the order of most used to least used, because there might not be enough time to inspect them all.
(B) All sewage and incoming water pipes in a house must be replaced. The plumber reasons that the cheaper polyvinyl chloride pipes should be used for sewage rather than copper pipes, since the money saved might be used to replace worn fixtures.
(C) A mechanic must replace the worn brakes on a company’s vans that are used each weekday. The mechanic reasons that since one of the vans is tentatively scheduled to be junked, he will not have to replace its brakes.
(D) A candidate decides to campaign in the areas of the city where the most new votes are concentrated. The candidate reasons that campaigning on other areas is unnecessary because in those areas the candidate’s message is actually liable to alienate voters.
(E) None of the children in a certain kindergarten class will take responsibility for the crayon drawing on the classroom wall. The teacher reasons that it is best to keep all the kindergarten children in during recess in order to be certain to punish the one who did the drawing on the wall.

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Re: CR: flaw in reasoning [#permalink]

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19 Nov 2007, 14:13
eyunni wrote:
A worker for a power company trims the branches of trees that overhang power lines as a prevention against damage to the lines anticipated because of the impending stormy season. The worker reasons that there will be no need for her to trim the overhanging branches of a certain tree because the owners of the tree have indicated that they might cut it down anyway.

Which one of the following decisions is based on flawed reasoning that is most similar to the worker’s flawed reasoning?

(A) A well inspector has a limited amount of time to inspect the wells of a town. The inspector reasons that the wells should be inspected in the order of most used to least used, because there might not be enough time to inspect them all.
(B) All sewage and incoming water pipes in a house must be replaced. The plumber reasons that the cheaper polyvinyl chloride pipes should be used for sewage rather than copper pipes, since the money saved might be used to replace worn fixtures.
(C) A mechanic must replace the worn brakes on a company’s vans that are used each weekday. The mechanic reasons that since one of the vans is tentatively scheduled to be junked, he will not have to replace its brakes.
(D) A candidate decides to campaign in the areas of the city where the most new votes are concentrated. The candidate reasons that campaigning on other areas is unnecessary because in those areas the candidate’s message is actually liable to alienate voters.
(E) None of the children in a certain kindergarten class will take responsibility for the crayon drawing on the classroom wall. The teacher reasons that it is best to keep all the kindergarten children in during recess in order to be certain to punish the one who did the drawing on the wall.

C.

Argument is as follows: trim branches for storms. Since tree will be cut down no need to trim the branches.

D: somewhat close, but not as good as C. Nothing about something being "removed" as both the passage and C do.
E: This is way off. Nothing about punishment. theres nothing about removal here or no need to do something because of the removal of the thing.
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Re: CR: flaw in reasoning [#permalink]

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19 Nov 2007, 14:30

In the argument the worker conviniently ignores the words might cut it down which indicates they might NOT cut it.

Similarly, the mechanic forgets the very important words tentatively scheduled, that means there is a possibility that the van might NOT get junked.

eyunni wrote:
A worker for a power company trims the branches of trees that overhang power lines as a prevention against damage to the lines anticipated because of the impending stormy season. The worker reasons that there will be no need for her to trim the overhanging branches of a certain tree because the owners of the tree have indicated that they might cut it down anyway.

Which one of the following decisions is based on flawed reasoning that is most similar to the worker’s flawed reasoning?

(C) A mechanic must replace the worn brakes on a company’s vans that are used each weekday. The mechanic reasons that since one of the vans is tentatively scheduled to be junked, he will not have to replace its brakes.
Director
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19 Nov 2007, 18:02
Yup. OA is C.
19 Nov 2007, 18:02
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