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# When officials in Tannersburg released their plan to widen the city’s

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When officials in Tannersburg released their plan to widen the city’s  [#permalink]

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10 Jul 2016, 04:08
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75% (01:58) correct 25% (02:11) wrong based on 2272 sessions

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Which of the following most logically completes the argument?

When officials in Tannersburg released their plan to widen the city’s main roads, environmentalists protested that widened roads would attract more traffic and lead to increased air pollution. In response, city officials pointed out that today’s pollution-control devices are at their most effective in vehicles traveling at higher speeds and that widening roads would increase the average speed of traffic. However, this effect can hardly be expected to offset the effect pointed out by environmentalists, since __________.

A. increases in traffic volume generally produce decreases in the average speed of traffic unless roads are widened
B. several of the roads that are slated for widening will have to be closed temporarily while construction is underway
C. most of the air pollution generated by urban traffic comes from vehicles that do not have functioning pollution-control devices
D. the newly widened roads will not have increased traffic volume if the roads that must be used to reach them are inadequate
E. a vehicle traveling on a route that goes through Tannersburg will spend less time on Tannersburg’s roads once the roads are widened

OG Verbal 2017 New Question(Book Question: 133)

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Re: When officials in Tannersburg released their plan to widen the city’s  [#permalink]

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Updated on: 24 Jul 2016, 08:54
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Question Type: Completes the argument

The whole argument is a set of premises and we are asked to find the evidence for the conclusion in the last line.
When officials in Tannersburg released their plan to widen the city’s main roads, environmentalists protested that widened roads would attract more traffic and lead to increased air pollution. In response, city officials pointed out that today’s pollution-control devices are at their most effective in vehicles traveling at higher speeds and that widening roads would increase the average speed of traffic. However, this effect can hardly be expected to offset the effect pointed out by environmentalists, since __________.

The ans should contradict the explanation given by the city officials as highlighted.

A. increases in traffic volume generally produce decreases in the average speed of traffic unless roads are widened
B. several of the roads that are slated for widening will have to be closed temporarily while construction is underway
C. most of the air pollution generated by urban traffic comes from vehicles that do not have functioning pollution-control devices
D. the newly widened roads will not have increased traffic volume if the roads that must be used to reach them are inadequate
E. a vehicle traveling on a route that goes through Tannersburg will spend less time on Tannersburg’s roads once the roads are widened

OG Verbal 2017 New Question(Book Question: 133)[/quote]
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Originally posted by Nightfury14 on 10 Jul 2016, 04:27.
Last edited by Nightfury14 on 24 Jul 2016, 08:54, edited 1 time in total.
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Re: When officials in Tannersburg released their plan to widen the city’s  [#permalink]

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Updated on: 24 Jul 2016, 12:09
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Super easy C

Pollution is not caused by cars that have pollution control devices. These cars contribute nothing towards increasing pollution. Then what causes air pollution :- May be air pollution is caused by other kind of vehicles. OK !!! SOUNDS RIGHT !!! Now if roads are widened; - Apart from good vehicles that cause no pollution, a lot of other vehicles (pollution causing vehicles) will also come. Since the number of pollution causing vehicles increases, pollution will also increase. So what is causing the increase in air pollution:- Some other kind of vehicles that are different from the cars with control device.

C. Most of the air pollution generated by urban traffic comes from vehicles that do not have functioning pollution-control devices

AbdurRakib wrote:
Which of the following most logically completes the argument?

When officials in Tannersburg released their plan to widen the city’s main roads, environmentalists protested that widened roads would attract more traffic and lead to increased air pollution. In response, city officials pointed out that today’s pollution-control devices are at their most effective in vehicles traveling at higher speeds and that widening roads would increase the average speed of traffic. However, this effect can hardly be expected to offset the effect pointed out by environmentalists, since __________.

A. increases in traffic volume generally produce decreases in the average speed of traffic unless roads are widened
B. several of the roads that are slated for widening will have to be closed temporarily while construction is underway
C. most of the air pollution generated by urban traffic comes from vehicles that do not have functioning pollution-control devices
D. the newly widened roads will not have increased traffic volume if the roads that must be used to reach them are inadequate
E. a vehicle traveling on a route that goes through Tannersburg will spend less time on Tannersburg’s roads once the roads are widened

OG Verbal 2017 New Question(Book Question: 133)

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Originally posted by LogicGuru1 on 24 Jul 2016, 08:14.
Last edited by LogicGuru1 on 24 Jul 2016, 12:09, edited 1 time in total.
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Re: When officials in Tannersburg released their plan to widen the city’s  [#permalink]

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16 Aug 2017, 08:12
C is the correct choice. If most vehicles in the area lack air-pollution devices altogether, then it is highly questionable whether the greater efficiency of the few functioning devices would be sufficient to compensate for the increase in air pollution that would result from increased traffic.
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Re: When officials in Tannersburg released their plan to widen the city’s  [#permalink]

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16 Aug 2017, 13:39
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Which of the following most logically completes the argument?

When officials in Tannersburg released their plan to widen the city’s main roads, environmentalists protested that widened roads would attract more traffic and lead to increased air pollution. In response, city officials pointed out that today’s pollution-control devices are at their most effective in vehicles traveling at higher speeds and that widening roads would increase the average speed of traffic. However, this effect can hardly be expected to offset the effect pointed out by environmentalists, since __________.

A. increases in traffic volume generally produce decreases in the average speed of traffic unless roads are widened
It strengthens the official's statement. It does the opposite job.

B. several of the roads that are slated for widening will have to be closed temporarily while construction is underway
Okay, but in the long term it might have a positive impact. Besides, it is just a fact set, unrelated to the argument.

C. most of the air pollution generated by urban traffic comes from vehicles that do not have functioning pollution-control devices
Correct. If most vehicals don't have a functioning controller, then the argument of official goes for a toss.

D. the newly widened roads will not have increased traffic volume if the roads that must be used to reach them are inadequate
Out of context

E. a vehicle traveling on a route that goes through Tannersburg will spend less time on Tannersburg’s roads once the roads are widened
This will again strengthen the official's argument.
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Re: When officials in Tannersburg released their plan to widen the city’s  [#permalink]

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20 Sep 2017, 17:18
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Which of the following most logically completes the argument?

When officials in Tannersburg released their plan to widen the city’s main roads, environmentalists protested that widened roads would attract more traffic and lead to increased air pollution. In response, city officials pointed out that today’s pollution-control devices are at their most effective in vehicles traveling at higher speeds and that widening roads would increase the average speed of traffic. However, this effect can hardly be expected to offset the effect pointed out by environmentalists, since __________.

A. increases in traffic volume generally produce decreases in the average speed of traffic unless roads are widened - Incorrect - Out of scope
B. several of the roads that are slated for widening will have to be closed temporarily while construction is underway
- Incorrect - Shell game
C. most of the air pollution generated by urban traffic comes from vehicles that do not have functioning pollution-control devices - Correct - When Cause (anti-pollution device) does not occurs, effect (low pollution) does not occur
D. the newly widened roads will not have increased traffic volume if the roads that must be used to reach them are inadequate - Incorrect - Out of scope
E. a vehicle traveling on a route that goes through Tannersburg will spend less time on Tannersburg’s roads once the roads are widened - Incorrect - Opposite answer
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Re: When officials in Tannersburg released their plan to widen the city’s  [#permalink]

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26 Dec 2017, 22:46
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D is a trap. D is actually a weakener. D is an irrelevant to support the argument of the environmentalists.
D talks about an issue that only affects the argument of the city speaker.
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Re: When officials in Tannersburg released their plan to widen the city’s  [#permalink]

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01 Jun 2018, 00:01
The city officials claim is based on today’s pollution-control devices but what if most of the air pollution generated by urban traffic comes from vehicles that do not have functioning pollution-control devices. Therefore this effect can hardly be expected to offset the effect pointed out by environmentalists.

Option C is the correct answer.
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Re: When officials in Tannersburg released their plan to widen the city’s  [#permalink]

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15 Oct 2018, 00:29
Official Explanation:

Argument Evaluation

Situation Environmentalists protested a plan to widen a city's main roads on the grounds that it would increase traffic and air pollution. City officials replied that widening the roads would increase average traffic speeds, which would improve the effectiveness of vehicles' pollution-control devices.

Reasoning What would most support the conclusion that the improved effectiveness of the pollution-control devices would be insufficient to prevent the increased traffic from increasing air pollution? The word since preceding the blank space at the end of the argument indicates that the space should be filled with a premise supporting the conclusion stated immediately before the since. To support this conclusion, we would need evidence that widening the roads and increasing traffic speeds would not improve the pollution-control devices' effectiveness enough to compensate for the amount of added air pollution generated by the additional traffic on the widened roads.

Option C is Correct. If most vehicles in the area lack air-pollution devices altogether or have ones that do not work, then it is highly questionable whether the greater efficiency of the few functioning devices would be sufficient to compensate for the increase in air pollution that would result from increased traffic.
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Re: When officials in Tannersburg released their plan to widen the city’s   [#permalink] 15 Oct 2018, 00:29
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