BREAKING: Target Test Prep releases Brand New 2026 On Demand GMAT prep course

Redeem

bold face must discuss

This topic has expert replies
Post new topic Post Reply
Previous Topic Next Topic
Master | Next Rank: 500 Posts
Posts: 343
Joined: Mon Jan 21, 2008 3:28 pm
Thanked: 4 times

bold face must discuss

by arorag » Sun Aug 09, 2009 10:59 am
Modern navigation systems, which are found in most of today’s commercial aircraft, are made with low-power circuitry, which is more susceptible to interference than the vacuum-tube circuitry found in older planes. During landing, navigation systems receive radio signals from the airport to guide the plane to the runway. Recently, one plane with low-power circuitry veered off course during landing, its dials dimming, when a passenger turned on a laptop computer. Clearly, modern aircraft navigation systems are being put at risk by the electronic devices that passengers carry on board, such as cassette players and laptop computers.

The two portions in boldface play which of the following roles?
(A) The first is a principle that the argument relies on and the second is a conclusion that can be drawn from the first.
(B) The first is a fact that argument relies on and the second is a conclusion that must be drawn from this argument.
(C) The first acknowledges a consideration that supports that main position; the second is that conclusion.
(D) The first is an evidence that supports the conclusion, the second is that conclusion.
(E) The first is a principle that is necessary for this argument, the second is a conclusion that could be drawn from this argument. [spoiler]

Why not B[/spoiler]
Top
Source: — Critical Reasoning |
Master | Next Rank: 500 Posts
Posts: 186
Joined: Sat Sep 02, 2006 7:50 pm
Thanked: 10 times
Followed by:1 members

by ogbeni » Sun Aug 09, 2009 4:16 pm
I go with D.

B is too restrictive. This is a tough question. OA pls
Top
Legendary Member
Posts: 1161
Joined: Mon May 12, 2008 2:52 am
Location: Sydney
Thanked: 23 times
Followed by:1 members

by mehravikas » Sun Aug 09, 2009 7:55 pm
Can someone explain what is the difference between A and E please?
Top
Master | Next Rank: 500 Posts
Posts: 138
Joined: Mon Mar 02, 2009 12:02 pm
Thanked: 15 times

by life is a test » Sun Aug 09, 2009 8:21 pm
I go with D.

the conclusion (second part) does not necessarily have to follow from the first hence B is out for me.
Going one step further, the conclusion cannot be inferred from the first since the two bolded parts don't logically follow hence A and E also out for me.

I eliminate C because the first is not a consideration, its a give fact (or evidence)...

someone pls correct me if they think my logic is incorrect. The best way to learn is from our mistakes!
Top
User avatar
Master | Next Rank: 500 Posts
Posts: 434
Joined: Mon Jun 11, 2007 9:48 pm
Location: Bangalore
Thanked: 6 times
GMAT Score:600

by viju9162 » Sun Aug 09, 2009 11:22 pm
I would also go with D.
"Native of" is used for a individual while "Native to" is used for a large group
Top
Legendary Member
Posts: 752
Joined: Sun May 17, 2009 11:04 pm
Location: Tokyo
Thanked: 81 times
GMAT Score:680

by tohellandback » Sun Aug 09, 2009 11:42 pm
whats wrong with C??
The powers of two are bloody impolite!!
Top
User avatar
Master | Next Rank: 500 Posts
Posts: 434
Joined: Mon Jun 11, 2007 9:48 pm
Location: Bangalore
Thanked: 6 times
GMAT Score:600

by viju9162 » Mon Aug 10, 2009 12:21 am
In C, first it says it supports the main position and it is the main conclusion.. if that is the case, then the conclusion must be about radio waves, runways ....
"Native of" is used for a individual while "Native to" is used for a large group
Top
Legendary Member
Posts: 752
Joined: Sun May 17, 2009 11:04 pm
Location: Tokyo
Thanked: 81 times
GMAT Score:680

by tohellandback » Mon Aug 10, 2009 12:31 am
viju9162 wrote:In C, first it says it supports the main position and it is the main conclusion.. if that is the case, then the conclusion must be about radio waves, runways ....
nopes..not convincing enough.
and I have problems with D. IMO its not an evidence that supports the conclusion.
"Recently, one plane with low-power circuitry veered off course during landing, its dials dimming, when a passenger turned on a laptop computer."
this is an evidence.
IMO C
The powers of two are bloody impolite!!
Top
Senior | Next Rank: 100 Posts
Posts: 37
Joined: Fri Jul 31, 2009 6:41 am
Thanked: 1 times

by acenikk » Mon Aug 10, 2009 2:59 am
C is the answer ?

A and B are out as the argument does not rely on the first bold statement. The statement is only acting as an additional premise. E is also out as it is not necessary for an argument. D is out as it is not the evidence; so I guess C should be the answer as it seems to acknowledge a consideration that is supporting the main position.
Top
Legendary Member
Posts: 882
Joined: Fri Feb 20, 2009 2:57 pm
Thanked: 15 times
Followed by:1 members
GMAT Score:690

Re: bold face must discuss

by crackgmat007 » Mon Aug 10, 2009 5:40 pm
arorag wrote:Modern navigation systems, which are found in most of today’s commercial aircraft, are made with low-power circuitry, which is more susceptible to interference than the vacuum-tube circuitry found in older planes. During landing, navigation systems receive radio signals from the airport to guide the plane to the runway. Recently, one plane with low-power circuitry veered off course during landing, its dials dimming, when a passenger turned on a laptop computer. Clearly, modern aircraft navigation systems are being put at risk by the electronic devices that passengers carry on board, such as cassette players and laptop computers.

The two portions in boldface play which of the following roles?
(A) The first is a principle that the argument relies on and the second is a conclusion that can be drawn from the first.
(B) The first is a fact that argument relies on and the second is a conclusion that must be drawn from this argument.
(C) The first acknowledges a consideration that supports that main position; the second is that conclusion.
(D) The first is an evidence that supports the conclusion, the second is that conclusion.
(E) The first is a principle that is necessary for this argument, the second is a conclusion that could be drawn from this argument. [spoiler]

Why not B[/spoiler]
damn...tough one

B seems a stong contender. Wondering how to interpret the first, is it a

1. fact
2. consideration
3. principle

can someone explain the differences between these?
Top
User avatar
Master | Next Rank: 500 Posts
Posts: 393
Joined: Sun Jul 19, 2009 9:18 pm
Location: Chicago
Thanked: 8 times

by riteshbindal » Mon Aug 10, 2009 5:59 pm
D IMO. OA plz
Top
Master | Next Rank: 500 Posts
Posts: 177
Joined: Wed Jul 16, 2008 11:06 am
Thanked: 2 times
Followed by:1 members

by perfectstranger » Mon Aug 17, 2009 1:01 am
E what's the OA? Could someone please provide explanation. I do not think first bold part support the conclusion it 's just a piece of evidence .
Please do not post answers visibly . Please hide them or post them later after the discussion.
Top
Master | Next Rank: 500 Posts
Posts: 135
Joined: Sat Jun 20, 2009 10:59 am
Thanked: 4 times

by missionGMAT007 » Mon Aug 17, 2009 1:51 am
Hello,
IMO B
my explanation
A, first is not a principle - principle is something which explains 'why low-power circuitry is more susceptible to interference?'
B, imo B
C, possible contender
D, first is not an evidence - evidence for the conclusion is 'Recently, one plane with low-power circuitry veered off....'
E, first is not a principle
Top
Junior | Next Rank: 30 Posts
Posts: 14
Joined: Tue May 19, 2009 2:38 am
Location: Lisbon
Thanked: 1 times

Re: bold face must discuss

by oagostinho » Mon Aug 17, 2009 2:44 am
arorag wrote:Modern navigation systems, which are found in most of today’s commercial aircraft, are made with low-power circuitry, which is more susceptible to interference than the vacuum-tube circuitry found in older planes. During landing, navigation systems receive radio signals from the airport to guide the plane to the runway. Recently, one plane with low-power circuitry veered off course during landing, its dials dimming, when a passenger turned on a laptop computer. Clearly, modern aircraft navigation systems are being put at risk by the electronic devices that passengers carry on board, such as cassette players and laptop computers.

The two portions in boldface play which of the following roles?
(A) The first is a principle that the argument relies on and the second is a conclusion that can be drawn from the first.
(B) The first is a fact that argument relies on and the second is a conclusion that must be drawn from this argument.
(C) The first acknowledges a consideration that supports that main position; the second is that conclusion.
(D) The first is an evidence that supports the conclusion, the second is that conclusion.
(E) The first is a principle that is necessary for this argument, the second is a conclusion that could be drawn from this argument. [spoiler]

Why not B[/spoiler]
Hi,
I think that will be "C".

This is my reasoning...The Main Position is: Modern navigation systems, ... Recently, one plane with low-power circuitry veered off course during landing, its dials dimming, when a passenger turned on a laptop computer.

After: Clearly, it's the conclusion.

(E) and (A)=> First is not a principle!
(D)=> First is not a evidence!
(B)=> (Here it is really tough..) My opinion is: It's fact but not the argument relies on...! It relies on: Recently one plane....etc! For that, it could not be this one!

Only left => (C)

What do you think, guys?

Cheers!
Top
Junior | Next Rank: 30 Posts
Posts: 23
Joined: Mon Aug 17, 2009 2:04 am

by winsome_vagabond » Mon Aug 17, 2009 4:05 am
For me, its between C and E .. close call.

I will go for E
Top
Post new topic Post Reply