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A cost-effective solution to the problem of airport

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A cost-effective solution to the problem of airport [#permalink] New post 21 Jan 2013, 07:33
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Difficulty:

  45% (medium)

Question Stats:

47% (02:13) correct 52% (01:24) wrong based on 154 sessions
A cost-effective solution to the problem of airport congestion and the pollution it causes is to provide high-speed train service between major cities in China, lying 300 to 800 kilometers apart. This plan would cost far less than the expansion of existing airports and would reduce the number of airplanes clogging airports and polluting the air.

Which of the following, if true, could opponents of the plan most appropriately cite as a piece of evidence for their objection to the plan?

In order to maintain current levels of airport congestion, significant repairs of airports must be undertaken.
The high-speed trains that would be used as part of such plan cause more pollution per passenger than do planes.
The majority of passengers departing from rural airports are flying to destinations in cities over 800 kilometers away.
Many new airports are being built in areas that are not yet served by high-speed train service.
A large proportion of air passengers in China take short-distance flights.
Source: Veri prep
[Reveal] Spoiler: OA

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Re: A cost-effective solution to the problem of airport [#permalink] New post 21 Jan 2013, 11:50
targetgmatchotu wrote:
A cost-effective solution to the problem of airport congestion and the pollution it causes is to provide high-speed train service between major cities in China, lying 300 to 800 kilometers apart. This plan would cost far less than the expansion of existing airports and would reduce the number of airplanes clogging airports and polluting the air.

Which of the following, if true, could opponents of the plan most appropriately cite as a piece of evidence for their objection to the plan?

In order to maintain current levels of airport congestion, significant repairs of airports must be undertaken.
The high-speed trains that would be used as part of such plan cause more pollution per passenger than do planes.
The majority of passengers departing from rural airports are flying to destinations in cities over 800 kilometers away.
Many new airports are being built in areas that are not yet served by high-speed train service.
A large proportion of air passengers in China take short-distance flights.
Source: Veri prep


C seems more likely than B.
B talks about the pollution created by high-speed trains versus the planes, both in normal mode of operation. But the stem talks about the pollution created by planes congesting the airport which would result in higher pollution per passenger than by the planes in normal mode of operation. So, 'B' doesn't weaken it a whole lot. However, if C is true, then the plan will be ineffective in reducing the airport traffic as most most people are flying to cities more than 800 km away, thereby weakening the proposal.
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Re: A cost-effective solution to the problem of airport [#permalink] New post 21 Jan 2013, 12:26
Expert's post
navinag wrote:
targetgmatchotu wrote:
A cost-effective solution to the problem of airport congestion and the pollution it causes is to provide high-speed train service between major cities in China, lying 300 to 800 kilometers apart. This plan would cost far less than the expansion of existing airports and would reduce the number of airplanes clogging airports and polluting the air.

Which of the following, if true, could opponents of the plan most appropriately cite as a piece of evidence for their objection to the plan?

In order to maintain current levels of airport congestion, significant repairs of airports must be undertaken.
The high-speed trains that would be used as part of such plan cause more pollution per passenger than do planes.
The majority of passengers departing from rural airports are flying to destinations in cities over 800 kilometers away.
Many new airports are being built in areas that are not yet served by high-speed train service.
A large proportion of air passengers in China take short-distance flights.
Source: Veri prep


C seems more likely than B.
B talks about the pollution created by high-speed trains versus the planes, both in normal mode of operation. But the stem talks about the pollution created by planes congesting the airport which would result in higher pollution per passenger than by the planes in normal mode of operation. So, 'B' doesn't weaken it a whole lot. However, if C is true, then the plan will be ineffective in reducing the airport traffic as most most people are flying to cities more than 800 km away, thereby weakening the proposal.



No here we do not care of something over 800 km. is beyond the scope of the question.

B is the correct answer
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Re: A cost-effective solution to the problem of airport [#permalink] New post 21 Jan 2013, 12:35
carcass wrote:
navinag wrote:
targetgmatchotu wrote:
A cost-effective solution to the problem of airport congestion and the pollution it causes is to provide high-speed train service between major cities in China, lying 300 to 800 kilometers apart. This plan would cost far less than the expansion of existing airports and would reduce the number of airplanes clogging airports and polluting the air.

Which of the following, if true, could opponents of the plan most appropriately cite as a piece of evidence for their objection to the plan?

In order to maintain current levels of airport congestion, significant repairs of airports must be undertaken.
The high-speed trains that would be used as part of such plan cause more pollution per passenger than do planes.
The majority of passengers departing from rural airports are flying to destinations in cities over 800 kilometers away.
Many new airports are being built in areas that are not yet served by high-speed train service.
A large proportion of air passengers in China take short-distance flights.
Source: Veri prep


C seems more likely than B.
B talks about the pollution created by high-speed trains versus the planes, both in normal mode of operation. But the stem talks about the pollution created by planes congesting the airport which would result in higher pollution per passenger than by the planes in normal mode of operation. So, 'B' doesn't weaken it a whole lot. However, if C is true, then the plan will be ineffective in reducing the airport traffic as most most people are flying to cities more than 800 km away, thereby weakening the proposal.



No here we do not care of something over 800 km. is beyond the scope of the question.

B is the correct answer



Would you please explain why you consider C to be out of scope ?
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Re: A cost-effective solution to the problem of airport [#permalink] New post 21 Jan 2013, 13:47
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simply because we care about the stretch between 300 and 800 km not over.
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Re: A cost-effective solution to the problem of airport [#permalink] New post 21 Jan 2013, 19:28
carcass wrote:
simply because we care about the stretch between 300 and 800 km not over.


Re-reading the option choice "The majority of passengers departing from rural airports are flying to destinations in cities over 800 kilometers away" tells me that it talks about 'the majority of passengers departing from rural airports' which may form a very small percentage of overall passenger traffic incoming at the city airport. That'd invalidate this option, but definitely not the reason " we care about the stretch between 300 and 800 km not over".

Any other thoughts anybody ?
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Re: A cost-effective solution to the problem of airport [#permalink] New post 31 Aug 2013, 04:02
carcass wrote:
simply because we care about the stretch between 300 and 800 km not over.


Could you please explain why is D wrong
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Re: A cost-effective solution to the problem of airport [#permalink] New post 31 Aug 2013, 04:16
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amitprakash09 wrote:
carcass wrote:
simply because we care about the stretch between 300 and 800 km not over.


Could you please explain why is D wrong


conclusion:
trains ==>this will reduce congestion ,reduce pollution...and they are also profitable.
now we have to weaken this conclusion.

option D says:
Many new airports are being built in areas that are not yet served by high-speed train service.
it is just stating fact ..that airports are in construction this has no effect on conlusion...

hope it helps.
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Re: A cost-effective solution to the problem of airport [#permalink] New post 31 Aug 2013, 04:18
carcass wrote:
simply because we care about the stretch between 300 and 800 km not over.


no this is not true.

option C is wrong because it is just talking about rural airports.....hence that option is not considering the full scenarios.(excluding airports from urban areas)
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Re: A cost-effective solution to the problem of airport [#permalink] New post 06 Dec 2013, 06:46
not able to understand why B is correct. It say that pollution per passenger is more for trains. So the argument assumes that number of passenger travelling in the train is more that that of plane. While generally this may be true, it may not be always true.

eg if there are 100 person travelling by train and 300 by airplane, then pollution by train may be less than plane. what am i missing here?
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Re: A cost-effective solution to the problem of airport [#permalink] New post 06 Dec 2013, 08:42
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ankur1901 wrote:
not able to understand why B is correct. It say that pollution per passenger is more for trains. So the argument assumes that number of passenger travelling in the train is more that that of plane. While generally this may be true, it may not be always true.

eg if there are 100 person travelling by train and 300 by airplane, then pollution by train may be less than plane. what am i missing here?


buyt here you are assuming a sort of information that you bring from the outside, from the real world.

You must weaken the argument according to the info IN the argument: the question if we have more passengers who use trains more than planes is not our concern in this precise moment.

hope this help
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Re: A cost-effective solution to the problem of airport [#permalink] New post 09 Jan 2014, 08:56
carcass wrote:
ankur1901 wrote:
not able to understand why B is correct. It say that pollution per passenger is more for trains. So the argument assumes that number of passenger travelling in the train is more that that of plane. While generally this may be true, it may not be always true.

eg if there are 100 person travelling by train and 300 by airplane, then pollution by train may be less than plane. what am i missing here?


buyt here you are assuming a sort of information that you bring from the outside, from the real world.

You must weaken the argument according to the info IN the argument: the question if we have more passengers who use trains more than planes is not our concern in this precise moment.

hope this help


Also 'rural' is a key word, that is not mentioned anywhere in stimulus. One fake move (or word on this case) and you're done

But still between B and C it is a close call. I personally like B better, but that's just me.
Re: A cost-effective solution to the problem of airport   [#permalink] 09 Jan 2014, 08:56
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