The difficulty with the proposed high-speed train line is : GMAT Critical Reasoning (CR)
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# The difficulty with the proposed high-speed train line is

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The difficulty with the proposed high-speed train line is [#permalink]

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23 Jun 2012, 20:12
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The difficulty with the proposed high-speed train line is that a used plane can be bought for one-third the price of the train line, and the plane, which is just as fast, can fly anywhere. The train would be a fixed linear system, and we live in a world that is spreading out in all directions and in which consumers choose the free-wheel systems (cars, buses, aircraft), which do not have fixed routes. Thus a sufficient market for the train will not exist.

Which of the following, if true, most severely weakens the argument presented above?

(A) Cars, buses, and planes require the efforts of drivers and pilots to guide them, whereas the train will be guided mechanically.

(B) Cars and buses are not nearly as fast as the high-speed train will be.

(C) Planes are not a free-wheel system because they can fly only between airports, which are less convenient for consumers than the high-speed train's stations would be.

(D) The high-speed train line cannot use currently underutilized train stations in large cities.

(E) For long trips, most people prefer to fly rather than to take ground-level transportation.
[Reveal] Spoiler: OA

Last edited by honchos on 13 May 2016, 01:16, edited 1 time in total.
Corrected the Question after verifying from OG13
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Re: The difficulty with the proposed high-speed train line is [#permalink]

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02 Jul 2012, 05:03
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parasena wrote:
The difficulty with the proposed high-speed train line is that a used plane can be bought for one-third the price of the train line, and the plane, which is just as fast, can fly anywhere. The train would be a fixed linear system, and we live in a world that is spreading out in all directions and in which consumers choose the free-wheel systems (cars, buses, aircraft), which do not have fixed routes. Thus a sufficient market for the train will not exist. to decrease in the next few years.

Which of the following, if true, most severely weakens the argument presented above?

(A) Cars, buses, and planes require the efforts of drivers and pilots to guide them, whereas the train will be guided mechanically.

(B) Cars and buses are not nearly as fast as the high-speed train will be.

(C) Planes are not a free-wheel system because they can fly only between airports, which are less convenient for consumers than the high-speed train's stations would be.

(D) The high-speed train line cannot use currently underutilized train stations in large cities.

(E) For long trips, most people prefer to fly rather than to take ground-level transportation.

The main argument of this blurb is that a sufficient market for the train will not exist mainly due to the fact that the train would be a fixed linear system, where as planes, cars and buses do not rely on the fixed linear system.

To weaken this argument IMO you need to state that planes cars and buses do not always rely on the free wheeler system/ or the fact that train would not all be a fixed linear system.

(C) weakens b/c it says that planes are also somewhat fixed as they can only be allowed to fly in b/w airports.

(A) tells us that trains are guided mechanically which could prove as an advantage to other systems, but it does not change that fact that it is still relying on a fixed linear system which is far inferior than a free wheeler system.
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Re: The difficulty with the proposed high-speed train line is [#permalink]

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02 Jul 2012, 07:15
Conclusion:

Buses,cars and plane will surpass the need to trains because a train is constrained to move on fixed roots unlike those of buses,cars and plane so, in an era when people are mostly willing to travel anywhere without any constrains the trains will vanish soon.

We need to weaken the conclusion by mentioning something which would mention that the trains are more or at least as convenient as buses.planes,and cars or
the buses,planes and cars are inconvenient than train.

(C) says it all.
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Re: The difficulty with the proposed high-speed train line is [#permalink]

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01 Sep 2012, 09:49
Aren't we questioning the premise(which is not allowed)? In C, it says planes are not free-wheel system.. in the premise, it says aircraft is a free-wheel system.
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Re: The difficulty with the proposed high-speed train line is [#permalink]

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02 Sep 2012, 22:40
It is more convenient for the commuters to travel by trains rather than planes because of its dependency on airports which can be far from where people live.

Only C weakens the argument presented.
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Re: The difficulty with the proposed high-speed train line is [#permalink]

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21 Oct 2013, 09:17
parasena wrote:
The difficulty with the proposed high-speed train line is that a used plane can be bought for one-third the price of the train line, and the plane, which is just as fast, can fly anywhere. The train would be a fixed linear system, and we live in a world that is spreading out in all directions and in which consumers choose the free-wheel systems (cars, buses, aircraft), which do not have fixed routes. Thus a sufficient market for the train will not exist. to decrease in the next few years.

Which of the following, if true, most severely weakens the argument presented above?

(A) Cars, buses, and planes require the efforts of drivers and pilots to guide them, whereas the train will be guided mechanically.

(B) Cars and buses are not nearly as fast as the high-speed train will be.

(C) Planes are not a free-wheel system because they can fly only between airports, which are less convenient for consumers than the high-speed train's stations would be.

(D) The high-speed train line cannot use currently underutilized train stations in large cities.

(E) For long trips, most people prefer to fly rather than to take ground-level transportation.

In this question how can we can weaken the conclusion by questioning the premise itself that planes are not a free wheel system,whereas in premise its mentioned consumers choose the free wheel systems (cars,buses,aircraft).
Aircraft and planes are two different things?
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Re: The difficulty with the proposed high-speed train line is [#permalink]

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23 Oct 2013, 09:37
abid1986 wrote:
parasena wrote:
The difficulty with the proposed high-speed train line is that a used plane can be bought for one-third the price of the train line, and the plane, which is just as fast, can fly anywhere. The train would be a fixed linear system, and we live in a world that is spreading out in all directions and in which consumers choose the free-wheel systems (cars, buses, aircraft), which do not have fixed routes. Thus a sufficient market for the train will not exist. to decrease in the next few years.

Which of the following, if true, most severely weakens the argument presented above?

(A) Cars, buses, and planes require the efforts of drivers and pilots to guide them, whereas the train will be guided mechanically.

(B) Cars and buses are not nearly as fast as the high-speed train will be.

(C) Planes are not a free-wheel system because they can fly only between airports, which are less convenient for consumers than the high-speed train's stations would be.

(D) The high-speed train line cannot use currently underutilized train stations in large cities.

(E) For long trips, most people prefer to fly rather than to take ground-level transportation.

In this question how can we can weaken the conclusion by questioning the premise itself that planes are not a free wheel system,whereas in premise its mentioned consumers choose the free wheel systems (cars,buses,aircraft).
Aircraft and planes are two different things?

Granted that attacking premise like this is rare, But none of the other options weaken the argument as this option does. So largely by POE, It is C.
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Re: The difficulty with the proposed high-speed train line is [#permalink]

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24 Oct 2013, 04:17
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abid1986 wrote:
parasena wrote:
The difficulty with the proposed high-speed train line is that a used plane can be bought for one-third the price of the train line, and the plane, which is just as fast, can fly anywhere. The train would be a fixed linear system, and we live in a world that is spreading out in all directions and in which consumers choose the free-wheel systems (cars, buses, aircraft), which do not have fixed routes. Thus a sufficient market for the train will not exist. to decrease in the next few years.

Which of the following, if true, most severely weakens the argument presented above?

(A) Cars, buses, and planes require the efforts of drivers and pilots to guide them, whereas the train will be guided mechanically.

(B) Cars and buses are not nearly as fast as the high-speed train will be.

(C) Planes are not a free-wheel system because they can fly only between airports, which are less convenient for consumers than the high-speed train's stations would be.

(D) The high-speed train line cannot use currently underutilized train stations in large cities.

(E) For long trips, most people prefer to fly rather than to take ground-level transportation.

In this question how can we can weaken the conclusion by questioning the premise itself that planes are not a free wheel system,whereas in premise its mentioned consumers choose the free wheel systems (cars,buses,aircraft).
Aircraft and planes are two different things?

Hi Abid,

No, I don't think the argument is playing on the difference between aircraft and planes. By the way, technically, an airplane is a kind of aircraft.

It seems to me a rare case of attacking the premise.

Due to lack of any better options, this is the right one.

Thanks,
Chiranjeev
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Re: The difficulty with the proposed high-speed train line is [#permalink]

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16 May 2014, 15:35
Can someone help clarify why A is not the right choice? I was stuck between A & C and I chose A b/c it address Cars, Buses AND Planes while C only tackles planes.
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Re: The difficulty with the proposed high-speed train line is [#permalink]

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19 May 2014, 00:09
russ9 wrote:
Can someone help clarify why A is not the right choice? I was stuck between A & C and I chose A b/c it address Cars, Buses AND Planes while C only tackles planes.

Hi Russ9

To understand why A is incorrect, let us understand how the author arrives at the conclusion that a sufficient market for the train will not exist. The author focuses on comparing fixed linear system and free wheel systems & says that:
Consumers prefer free wheel systems (e.g. planes) over fixed linear systems (trains) --> So, sufficient market for train will not exist
So according to the author, consumer preference (of free wheel system over fixed routes) is the decisive factor that defines the future market

Option A talks about driving mechanism which has nothing to do with consumer preference (of free wheel system over fixed routes) which decides the future market. So the author's conclusion remains unaffected in this case.

To simplify, we can consider that the argument compares X and Y and says that since 'm' is the decisive factor and Y is better than X in this regard, therefore X will fail. Option A says that 'n' is a factor where X is better than Y. But does that weaken the argument? Hardly.

Now let us see why option C is correct. C says that both planes and trains do not belong to free wheel system and plane travel is less convenient than train travel. Therefore, consumer preference might favor trains over planes and hence a sufficient market for trains might exist in future. Again, we go with this option since none other are better and it succeeds in creating some amount of doubt on the validity of the argument.

Hop this helps!
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Re: The difficulty with the proposed high-speed train line is [#permalink]

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26 Oct 2014, 04:46
ab2014 wrote:
russ9 wrote:
Can someone help clarify why A is not the right choice? I was stuck between A & C and I chose A b/c it address Cars, Buses AND Planes while C only tackles planes.

Hi Russ9

To understand why A is incorrect, let us understand how the author arrives at the conclusion that a sufficient market for the train will not exist. The author focuses on comparing fixed linear system and free wheel systems & says that:
Consumers prefer free wheel systems (e.g. planes) over fixed linear systems (trains) --> So, sufficient market for train will not exist
So according to the author, consumer preference (of free wheel system over fixed routes) is the decisive factor that defines the future market

Option A talks about driving mechanism which has nothing to do with consumer preference (of free wheel system over fixed routes) which decides the future market. So the author's conclusion remains unaffected in this case.

To simplify, we can consider that the argument compares X and Y and says that since 'm' is the decisive factor and Y is better than X in this regard, therefore X will fail. Option A says that 'n' is a factor where X is better than Y. But does that weaken the argument? Hardly.

Now let us see why option C is correct. C says that both planes and trains do not belong to free wheel system and plane travel is less convenient than train travel. Therefore, consumer preference might favor trains over planes and hence a sufficient market for trains might exist in future. Again, we go with this option since none other are better and it succeeds in creating some amount of doubt on the validity of the argument.

Hop this helps!

I think this merely weakens the argument. There is still a chance that as car and bus are free wheel systems, passenger may prefer a free wheel system (car and bus) to fixed linear system (a train). As passengers are moving to bus and cars from trains and planes, there is still a chance that a sufficient market for train will not exist.
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Re: The difficulty with the proposed high-speed train line is [#permalink]

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22 Jun 2015, 03:15
Can some one please explain why B is not the correct choice ?

B. Cars and buses are not nearly as fast as the high-speed train will be - If cars and buses are not as fast as high speed trains obviously market for high speed train will increase.

What is the reasoning behind this ?
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Re: The difficulty with the proposed high-speed train line is [#permalink]

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10 Oct 2015, 15:49
How can the premise be falsified?

If i may ask, what is the source of this question?

Thanks all
Re: The difficulty with the proposed high-speed train line is   [#permalink] 10 Oct 2015, 15:49
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