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# Major airlines will purchase many of the new aircrafts capable of carr

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Major airlines will purchase many of the new aircrafts capable of carr  [#permalink]

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Updated on: 09 May 2018, 23:45
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Major airlines will purchase many of the new aircrafts capable of carrying more than 500 passengers on transcontinental and transoceanic flights. These airlines currently rely on "hub and spoke" systems of routing, in which large planes, which can seat 400 people and are capable of transoceanic flight, fly into hubs that have runways sufficiently long to handle them. From there, passengers are dispatched to local airports on connecting flights on small planes. With takeoff and landing time slots almost completely booked at most hubs, and little new runway construction expected, airlines will want to expand the volume of passengers they can fly in a given time slot.

The argument above would be most weakened if which of the following were true?

A. The new 500 seat aircraft cost more per seat than existing aircraft

B. Air traffic control systems at most hub airports cannot handle any more flights per hour than they currently do.

C. The new 500 seat aircraft require boarding times substantially longer than those of existing aircraft

D. Small passenger aircraft, capable of efficient transcontinental and transoceanic flight and able to land on short runways, have come into service

E. Transoceanic air flights are currently running at near maximum capacity

Spoiler: :: Doubt
Why not C? Argument is that buying 500 seater plane will be profitable provided airlines can fly more passenger in a given time slots, since they operate in a hub-spoke system they are bound by time slots at each hub. Hence if airlines cannot comply with that time slots of hub they will not be able to maximize the profit with 500 seater plane.

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Originally posted by jamifahad on 21 Oct 2011, 02:11.
Last edited by Bunuel on 09 May 2018, 23:45, edited 2 times in total.
Renamed the topic and edited the question.
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Re: Major airlines will purchase many of the new aircrafts capable of carr  [#permalink]

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08 Oct 2013, 21:07
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IMO its D

lets look at the options:

A. The new 500 seat aircraft cost more per seat than existing aircraft
Irrelevant and out of scope. Hence out.
B. Air traffic control systems at most hub airports cannot handle any more flights per hour than they currently do
This one would look very attractive. However, this is something that is already mentioned in the argument. Read the last sentence, With takeoff and landing time slots almost completely booked at most hubs, and little new runway construction expected. Its already given that the most slots are booked. Also, as a remedy, there is a new runway being setup. So this cannot weaken the argument. Hence out.
C. The new 500 seat aircraft require boarding times substantially longer than those of existing aircraft
Irrelevant and out of scope. Hence out.
D. Small passenger aircraft, capable of efficient transcontinental and transoceanic flight and able to land on short runways, have come into service
This option weakens the argument. Our entire argument is based on the assumptions that there are no small aircrafts available that are efficient in making transcontinental and transoceanic flight. Because, if there are such aircrafts then the Airlines will buy these small aircrafts (instead of the bigger aircrafts) capable of making the flight and landing at the local airports directly. This would increase the airllines volume of passengers at a given time slot. Hold
E. Transoceanic air flights are currently running at near maximum capacity
This does not weaken the conclusion in any way. Hence out

Hence D is correct.

Hope its clear
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Re: Major airlines will purchase many of the new aircrafts capable of carr  [#permalink]

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04 Nov 2011, 23:13
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Premise 1: Major airlines will buy new airplanes that have capability of loading 500 passengers and flying over ocean (and continent)
Premise 2: These new airplane rely on the "hub and spoke" system, in which the large airplane (400 pas) need enough long runways to take off and landing
Premise 4: Hubs slots is full now

Conclusion: If major airlines want to operate new airlines, they have to expand current runways

A. The new 500 seat aircraft cost more per seat than existing aircraft => quite irrelevant, the air ticket cost more, mean that cost need to offset with the new constructions of runways
B. Air traffic control systems at most hub airports cannot handle any more flights per hour than they currently do. => Strengthen
C. The new 500 seat aircraft require boarding times substantially longer than those of existing aircraft => Strengthen. 500 seat airplanes need more boarding times, so expanding runways is necessary
D. Small passenger aircraft, capable of efficient transcontinental and transoceanic flight and able to land on short runways, have come into service => this one is not strong answer, but it is the most sentence that can attack the expanding runways plan. Small passenger aircraft come into service, companies do not need to buy large airplane and not need to expand runways
E. Transoceanic air flights are currently running at near maximum capacity => Does not explain the new constructions is bad idea

Please remind me if I was wrong :D
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Re: Major airlines will purchase many of the new aircrafts capable of carr  [#permalink]

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13 Oct 2013, 13:58
mba1382 wrote:
Major airlines will purchase many of the new aircrafts capable of carrying more than 500 passengers on transcontinental and transoceanic flights. These airlines currently rely on "hub and spoke" systems of routing, in which large planes, which can seat 400 people and are capable of transoceanic flight, fly into hubs that have runways sufficiently long to handle them. From there, passengers are dispatched to local airports on connecting flights on small planes. With takeoff and landing time slots almost completely booked at most hubs, and little new runway construction expected, airlines will want to expand the volume of passengers they can fly in a given time slot.

The argument above would be most weakened if which of the following were true?

A. The new 500 seat aircraft cost more per seat than existing aircraft
B. Air traffic control systems at most hub airports cannot handle any more flights per hour than they currently do
C. The new 500 seat aircraft require boarding times substantially longer than those of existing aircraft
D. Small passenger aircraft, capable of efficient transcontinental and transoceanic flight and able to land on short runways, have come into service
E. Transoceanic air flights are currently running at near maximum capacity

Please provide answer along with your reasoning for each option. Thanks.

There is no medium, transcontinental and transoceanic flights, to go to small air port .Hence if new flights can take more passenger in one go,then airlines can expand their business.
Pre thinking:For weaken
big fligts will not be able to land in the existing airport --
Other way passenger can directly move to local airport/local town.

A. The new 500 seat aircraft cost more per seat than existing aircraft --Cost doesn't matter..Out of scope.
B. Air traffic control systems at most hub airports cannot handle any more flights per hour than they currently do. It may tempt you.But companies will replace their old fligts .No new flights.
C. The new 500 seat aircraft require boarding times substantially longer than those of existing aircraft.It doesn't matter as company expansion is meeting.
D. Small passenger aircraft, capable of efficient transcontinental and transoceanic flight and able to land on short runways, have come into service..Yes.Thats correct.As there is other wa passenger can go directly.
E. Transoceanic air flights are currently running at near maximum capacity.Hence we need some new option.
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Re: Major airlines will purchase many of the new aircrafts capable of carr  [#permalink]

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27 Jan 2014, 13:56
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mba1382 wrote:
Major airlines will purchase many of the new aircrafts capable of carrying more than 500 passengers on transcontinental and transoceanic flights. These airlines currently rely on "hub and spoke" systems of routing, in which large planes, which can seat 400 people and are capable of transoceanic flight, fly into hubs that have runways sufficiently long to handle them. From there, passengers are dispatched to local airports on connecting flights on small planes. With takeoff and landing time slots almost completely booked at most hubs, and little new runway construction expected, airlines will want to expand the volume of passengers they can fly in a given time slot.

The argument above would be most weakened if which of the following were true?

A. The new 500 seat aircraft cost more per seat than existing aircraft
B. Air traffic control systems at most hub airports cannot handle any more flights per hour than they currently do
C. The new 500 seat aircraft require boarding times substantially longer than those of existing aircraft
D. Small passenger aircraft, capable of efficient transcontinental and transoceanic flight and able to land on short runways, have come into service
E. Transoceanic air flights are currently running at near maximum capacity

Please provide answer along with your reasoning for each option. Thanks.

I went with C on this one cause I thought that given that the airlines wanted to expand the volume of passengers per given time slot, then if boarding times are substantially longer, this wouldn't be possible.

Having said this, I still have doubts on C vs D as contenders
Would be happy to discuss further

Cheers!
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Re: Major airlines will purchase many of the new aircrafts capable of carr  [#permalink]

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27 Jan 2014, 19:46
Well I think the reasoning using which I eliminated C is as below:

Fact : From the stem we understand that existing 400 seater planes are capable of transoceanic flight and fly into hubs that have runways sufficiently long to handle them.
Conclusion or aim of the airlines: Airlines want to expand the volume of passengers they can fly in a given time slot.

Assumption: Within a given time slot, we do have a way to increase passengers using the new 500 seater,capable of transcontinental and transoceanic flights, and no other alternative.

We need to weaken the above assumption link.

When we look at option C i.e. The new 500 seat aircraft require boarding times substantially longer than those of existing aircraft, we do not have any idea about boarding times for existing 400 seater. Additionally, it might be the case that additional capacity of carrying 100 passenger might still help the airlines achieve the aim. In short, if an option has insufficient info then it will not weaken the conclusion most.

But looking at option D, we know that we do have an alternative to carry additional passengers within a given time slot, keeping in mind that additional runaway construction is unlikely. So this does weaken the conclusion most.

I am not an expert but hope this helps!!

jlgdr wrote:
mba1382 wrote:
Major airlines will purchase many of the new aircrafts capable of carrying more than 500 passengers on transcontinental and transoceanic flights. These airlines currently rely on "hub and spoke" systems of routing, in which large planes, which can seat 400 people and are capable of transoceanic flight, fly into hubs that have runways sufficiently long to handle them. From there, passengers are dispatched to local airports on connecting flights on small planes. With takeoff and landing time slots almost completely booked at most hubs, and little new runway construction expected, airlines will want to expand the volume of passengers they can fly in a given time slot.

The argument above would be most weakened if which of the following were true?

A. The new 500 seat aircraft cost more per seat than existing aircraft
B. Air traffic control systems at most hub airports cannot handle any more flights per hour than they currently do
C. The new 500 seat aircraft require boarding times substantially longer than those of existing aircraft
D. Small passenger aircraft, capable of efficient transcontinental and transoceanic flight and able to land on short runways, have come into service
E. Transoceanic air flights are currently running at near maximum capacity

Please provide answer along with your reasoning for each option. Thanks.

I went with C on this one cause I thought that given that the airlines wanted to expand the volume of passengers per given time slot, then if boarding times are substantially longer, this wouldn't be possible.

Having said this, I still have doubts on C vs D as contenders
Would be happy to discuss further

Cheers!
J
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Re: Major airlines will purchase many of the new aircrafts capable of carr  [#permalink]

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20 Apr 2014, 08:39
rockstar23 wrote:
IMO its D

lets look at the options:

A. The new 500 seat aircraft cost more per seat than existing aircraft
Irrelevant and out of scope. Hence out.
B. Air traffic control systems at most hub airports cannot handle any more flights per hour than they currently do
This one would look very attractive. However, this is something that is already mentioned in the argument. Read the last sentence, With takeoff and landing time slots almost completely booked at most hubs, and little new runway construction expected. Its already given that the most slots are booked. Also, as a remedy, there is a new runway being setup. So this cannot weaken the argument. Hence out.
C. The new 500 seat aircraft require boarding times substantially longer than those of existing aircraft
Irrelevant and out of scope. Hence out.
D. Small passenger aircraft, capable of efficient transcontinental and transoceanic flight and able to land on short runways, have come into service
This option weakens the argument. Our entire argument is based on the assumptions that there are no small aircrafts available that are efficient in making transcontinental and transoceanic flight. Because, if there are such aircrafts then the Airlines will buy these small aircrafts (instead of the bigger aircrafts) capable of making the flight and landing at the local airports directly. This would increase the airllines volume of passengers at a given time slot. Hold
E. Transoceanic air flights are currently running at near maximum capacity
This does not weaken the conclusion in any way. Hence out

Hence D is correct.

Hope its clear

'Air traffic control systems at most hub airports cannot handle any more flights' is not equivalent to 'airports cannot handle any more flights'. I think you are confusing these two terms. You could add on a hundred runways but what it says is that the traffic control cannot handle any more flight. If there are 2 people working in air traffic control then they might not be able to handle the traffic no matter how many runways you add.
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Re: Major airlines will purchase many of the new aircrafts capable of carr  [#permalink]

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20 Apr 2014, 08:42
sanjeebpanda wrote:
mba1382 wrote:
Major airlines will purchase many of the new aircrafts capable of carrying more than 500 passengers on transcontinental and transoceanic flights. These airlines currently rely on "hub and spoke" systems of routing, in which large planes, which can seat 400 people and are capable of transoceanic flight, fly into hubs that have runways sufficiently long to handle them. From there, passengers are dispatched to local airports on connecting flights on small planes. With takeoff and landing time slots almost completely booked at most hubs, and little new runway construction expected, airlines will want to expand the volume of passengers they can fly in a given time slot.

The argument above would be most weakened if which of the following were true?

A. The new 500 seat aircraft cost more per seat than existing aircraft
B. Air traffic control systems at most hub airports cannot handle any more flights per hour than they currently do
C. The new 500 seat aircraft require boarding times substantially longer than those of existing aircraft
D. Small passenger aircraft, capable of efficient transcontinental and transoceanic flight and able to land on short runways, have come into service
E. Transoceanic air flights are currently running at near maximum capacity

Please provide answer along with your reasoning for each option. Thanks.

There is no medium, transcontinental and transoceanic flights, to go to small air port .Hence if new flights can take more passenger in one go,then airlines can expand their business.
Pre thinking:For weaken
big fligts will not be able to land in the existing airport --
Other way passenger can directly move to local airport/local town.

A. The new 500 seat aircraft cost more per seat than existing aircraft --Cost doesn't matter..Out of scope.
B. Air traffic control systems at most hub airports cannot handle any more flights per hour than they currently do. It may tempt you.But companies will replace their old fligts .No new flights.
C. The new 500 seat aircraft require boarding times substantially longer than those of existing aircraft.It doesn't matter as company expansion is meeting.
D. Small passenger aircraft, capable of efficient transcontinental and transoceanic flight and able to land on short runways, have come into service..Yes.Thats correct.As there is other wa passenger can go directly.
E. Transoceanic air flights are currently running at near maximum capacity.Hence we need some new option.

'But companies will replace their old fligts' -- it's not the airline companies who will replace the systems. Their willingness to expand wholly relies on the fact that other systems are the same. My point here is that if they add new planes to their fleet but the traffic control cannot manage the new flights then those airplanes will just be left idle in the hangars.
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Re: Major airlines will purchase many of the new aircrafts capable of carr  [#permalink]

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23 Apr 2014, 07:05
D is practical and efficient option.
If I were a airline CEO, I would have chosen small aircraft which can land on other small airports.
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Re: Major airlines will purchase many of the new aircrafts capable of carr  [#permalink]

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14 Jan 2015, 20:59
jlgdr wrote:
mba1382 wrote:
Major airlines will purchase many of the new aircrafts capable of carrying more than 500 passengers on transcontinental and transoceanic flights. These airlines currently rely on "hub and spoke" systems of routing, in which large planes, which can seat 400 people and are capable of transoceanic flight, fly into hubs that have runways sufficiently long to handle them. From there, passengers are dispatched to local airports on connecting flights on small planes. With takeoff and landing time slots almost completely booked at most hubs, and little new runway construction expected, airlines will want to expand the volume of passengers they can fly in a given time slot.

The argument above would be most weakened if which of the following were true?

A. The new 500 seat aircraft cost more per seat than existing aircraft
B. Air traffic control systems at most hub airports cannot handle any more flights per hour than they currently do
C. The new 500 seat aircraft require boarding times substantially longer than those of existing aircraft
D. Small passenger aircraft, capable of efficient transcontinental and transoceanic flight and able to land on short runways, have come into service
E. Transoceanic air flights are currently running at near maximum capacity

Please provide answer along with your reasoning for each option. Thanks.

I went with C on this one cause I thought that given that the airlines wanted to expand the volume of passengers per given time slot, then if boarding times are substantially longer, this wouldn't be possible.

Having said this, I still have doubts on C vs D as contenders
Would be happy to discuss further

Cheers!
J

The conclusion: Major airlines will purchase many of the new aircrafts capable of carrying more than 500 passengers on transcontinental and transoceanic flights.

Given that all other options clearly don't look valid here is my take on C and D:

C. The new 500 seat aircraft require boarding times substantially longer than those of existing aircraft. Let's look at the line 'With takeoff and landing time slots almost completely booked at most hubs, and little new runway construction expected, airlines will want to expand the volume of passengers they can fly in a given time slot.' The words 'almost' and 'most' do not really give us a clear picture of how saturated the time slots are. eg. out of 10 hubs 7 may have their time slots almost completely booked but the remaining 3 may have enough to accomodate these new 500 seat aircraft with longer boarding times. This does not weaken the conclusion that major airlines will purchase many of the new aircrafts capable of carrying more than 500 passengers.

That being said, the argument assumes that, given the situation, the airlines will not want to consider any other option but
to expand the volume of passengers they can fly in a given time slot with the new 500 seat aircraft. There may be another option which is likely to help the airlines achieve their objectives better, weakening the statement that Major airlines will purchase many of the new aircrafts capable of carrying more than 500 passengers on transcontinental and transoceanic flights.

D. Small passenger aircraft, capable of efficient transcontinental and transoceanic flight and able to land on short runways, have come into service. This is an option which clearly is a better bet for the airlines given the current situation and hence, weakens the conclusion.

Let me know if there is a flaw in my reasoning.
Cheers!
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14 Nov 2015, 21:33
D is the correct option because Small Air-crafts will not be flying to hubs, where it is impossible to add more air crafts because of already full landing and take off time slots. Instead the Small aircrafts will be flying directly to the smaller domestic airports, which is the real final destination of travellers. Thus this weakens the airlines' plan
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Re: Major airlines will purchase many of the new aircrafts capable of carr  [#permalink]

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21 Dec 2015, 23:01
Is the OA correct? I understand the rationale behind D however it seems to me to be out of scope. Please explain or confirm the OA?
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Re: Major airlines will purchase many of the new aircrafts capable of carr  [#permalink]

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22 Dec 2015, 10:29
Anonamy wrote:
Is the OA correct? I understand the rationale behind D however it seems to me to be out of scope. Please explain or confirm the OA?

I think D is correct because the concern here is that big planes require longer runways, and according to option D if we have a plane which is capable of efficient transcontinental and transoceanic flight and able to land on short runways. The whole problem of "Hub and Spoke" system of routing itself will not come into picture and hence airlines would not want to purchase many of the new aircrafts capable of carrying more than 500 passengers on transcontinental and transoceanic flights.
That's what i think should be logical explanation of option D. Any comments most welcome.
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22 Dec 2015, 16:03
rohitp wrote:
Anonamy wrote:
Is the OA correct? I understand the rationale behind D however it seems to me to be out of scope. Please explain or confirm the OA?

I think D is correct because the concern here is that big planes require longer runways, and according to option D if we have a plane which is capable of efficient transcontinental and transoceanic flight and able to land on short runways. The whole problem of "Hub and Spoke" system of routing itself will not come into picture and hence airlines would not want to purchase many of the new aircrafts capable of carrying more than 500 passengers on transcontinental and transoceanic flights.
That's what i think should be logical explanation of option D. Any comments most welcome.

At the same time we are not provided any information on the landing and/or time requirements for the new small planes.

"Boarding times" in C insinuates that additional time will be required to accommodate these 500 person planes, and the argument premise states that take-off and landing time slots are maxed out - these three times may or may not impact each other and may or may not weaken the conclusion.

On the whole this isn't as airtight as weaken questions should be...

On second thought, as you've mentioned, hub and spoke would be removed from the equation, thereby removing the concern about times. Perhaps you're right, but I still feel that this isn't airtight.
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Re: Major airlines will purchase many of the new aircrafts capable of carr  [#permalink]

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23 Dec 2015, 01:33
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1
Conclusion of the argument is -> airlines want to expand the volume of passengers they can fly in a given time slot by purchasing 500 seat aircrafts
The Reason being -> Takeoff and landing timeslots of the hubs in transoceanic flights being maxed out with no new plans for construction of runways
So, to weaken this argument we need to provide a reason not to buy the 500 seat aircrafts

A. The new 500 seat aircraft cost more per seat than existing aircraft.
->Even thought technically this is a valid reason, it doesn't refer to the points in argument to come to this conclusion. Cost is out of Scope

B. Air traffic control systems at most hub airports cannot handle any more flights per hour than they currently do.
-> In this case, having higher per capacity of aircrafts is better to serve more people. It increases the performance of both Hubs and Airlines. So, buy 500 seat Aircrafts

C. The new 500 seat aircraft require boarding times substantially longer than those of existing aircraft.
-> The hubs are only used for dispatching of customers, so boarding time doesn't play a vital role here. Buying the 500 Seated Aircrafts does not hurt

D. Small passenger aircraft, capable of efficient transcontinental and transoceanic flight and able to land on short runways, have come into service.
->In this case, better go with Small passenger aircrafts! Since they are transcontinental, the capacity of hubs doesn't matter as there is an alternate. They can land directly in local aircrafts instead of Hubs. Also, with the increase in the landing places, the volume of people they can serve should increase as well. So, don't purchase the 500 seat aircraft, but go with the small passenger aircrafts.

E. Transoceanic air flights are currently running at near maximum capacity.
-> We are talking about flights here, and not the hubs. If the flights are reaching their maximum capacity, then buy the 500 seat aircrafts

Hope this helps
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Re: Major airlines will purchase many of the new aircrafts capable of carr  [#permalink]

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20 Jun 2016, 04:06
Can someone pls explain why C is wrong?
I guess both C and D) are weakeners but D is a better options and C) requires a little more assumption to make it a better weakener.
Is my reasoning correct?

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Re: Major airlines will purchase many of the new aircrafts capable of carr  [#permalink]

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21 Jul 2016, 22:44
Attachment:
Screen Shot 2011-10-21 at 12.59.43 PM.png

A. The new 500 seat aircraft cost more per seat than existing aircraft
B. Air traffic control systems at most hub airports cannot handle any more flights per hour than they currently do.
C. The new 500 seat aircraft require boarding times substantially longer than those of existing aircraft
D. Small passenger aircraft, capable of efficient transcontinental and transoceanic flight and able to land on short runways, have come into service
E. Transoceanic air flights are currently running at near maximum capacity

Spoiler: :: Doubt
Why not C? Argument is that buying 500 seater plane will be profitable provided airlines can fly more passenger in a given time slots, since they operate in a hub-spoke system they are bound by time slots at each hub. Hence if airlines cannot comply with that time slots of hub they will not be able to maximize the profit with 500 seater plane.

Can someone explain what's the conclusion here and how option 'D' weakens it!

I feel option 'C' best weakens the argument than 'D'.
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Re: Major airlines will purchase many of the new aircrafts capable of carr  [#permalink]

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22 Jul 2016, 01:38
1
Top Contributor
smartguy595 wrote:
Attachment:
Screen Shot 2011-10-21 at 12.59.43 PM.png

A. The new 500 seat aircraft cost more per seat than existing aircraft
B. Air traffic control systems at most hub airports cannot handle any more flights per hour than they currently do.
C. The new 500 seat aircraft require boarding times substantially longer than those of existing aircraft
D. Small passenger aircraft, capable of efficient transcontinental and transoceanic flight and able to land on short runways, have come into service
E. Transoceanic air flights are currently running at near maximum capacity

Spoiler: :: Doubt
Why not C? Argument is that buying 500 seater plane will be profitable provided airlines can fly more passenger in a given time slots, since they operate in a hub-spoke system they are bound by time slots at each hub. Hence if airlines cannot comply with that time slots of hub they will not be able to maximize the profit with 500 seater plane.

Can someone explain what's the conclusion here and how option 'D' weakens it!

I feel option 'C' best weakens the argument than 'D'.

Hello, smartguy595

IMHO

This is a little bit weird question because I see the two-part conclusion:
1. Airlines will buy new big air crafts ... and ... will want to expand the volume of passengers in the given time

but I don't see premises on which this conclusion is based.
There is should be something like "Airlines have a big need to create new transcontinental and transoceanic flights to make a profit".

C says that new aircraft need more time for boarding but this fact does not affect need of companies to buy these aircrafts because they still need them for creating new transcontinental routes

D says that airlines have another way to create transcontinental flights by buying new small aircrafts which can make the same flights but do not have disadvantages of big aircrafts.
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Re: Major airlines will purchase many of the new aircrafts capable of carr  [#permalink]

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22 Jul 2016, 05:39
I think the OA given is wrong. Here's my view:

Why D is wrong: It is mentioned that airlines are currently using hub and spoke model. That means, if they evenstart using new smaller planes, they'll still follow the old model and in the old model they'll need substantially more number of planes to carry same number of passangers as those carried by a larger plane. Sincw time slots are limited, the option of using smaller planes is wrong.

Why C is correct: This is because if new planes start taking more time to board, then airlines will nor have suffient flight numbers in the limited time slots they have. Their new planes would become useless in that case. Hence the best weakener against use of new planes.

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Re: Major airlines will purchase many of the new aircrafts capable of carr  [#permalink]

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22 Jul 2016, 07:57
RaghavSingla wrote:
I think the OA given is wrong. Here's my view:

Why D is wrong: It is mentioned that airlines are currently using hub and spoke model. That means, if they evenstart using new smaller planes, they'll still follow the old model and in the old model they'll need substantially more number of planes to carry same number of passangers as those carried by a larger plane. Sincw time slots are limited, the option of using smaller planes is wrong.

Why C is correct: This is because if new planes start taking more time to board, then airlines will nor have suffient flight numbers in the limited time slots they have. Their new planes would become useless in that case. Hence the best weakener against use of new planes.

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Hi!

The argument above states that the airlines will purchase bigger planes to expand the volume of passengers they can fly in A GIVEN TIME SLOT.

Option C-How much ever more time it may take, it will always carry 25% more passengers at any given time slot.

Option D-The airlines use these large planes because they are capable of Transoceanic flights. They use the hub-spoke model because these large planes cannot land on these smaller runways.
This option brings an alternative to their operation model by bringing new planes which are capable of efficient transcontinental and transoceanic flight and are able to land on short runways.

So, the answer is D.

Please let me know if you find some errors in the reasoning.
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Re: Major airlines will purchase many of the new aircrafts capable of carr   [#permalink] 22 Jul 2016, 07:57

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