GMAT Question of the Day - Daily to your Mailbox; hard ones only

 It is currently 21 Jan 2019, 16:16

### GMAT Club Daily Prep

#### Thank you for using the timer - this advanced tool can estimate your performance and suggest more practice questions. We have subscribed you to Daily Prep Questions via email.

Customized
for You

we will pick new questions that match your level based on your Timer History

Track

every week, we’ll send you an estimated GMAT score based on your performance

Practice
Pays

we will pick new questions that match your level based on your Timer History

## Events & Promotions

###### Events & Promotions in January
PrevNext
SuMoTuWeThFrSa
303112345
6789101112
13141516171819
20212223242526
272829303112
Open Detailed Calendar
• ### GMAT Club Tests are Free & Open for Martin Luther King Jr.'s Birthday!

January 21, 2019

January 21, 2019

10:00 PM PST

11:00 PM PST

Mark your calendars - All GMAT Club Tests are free and open January 21st for celebrate Martin Luther King Jr.'s Birthday.
• ### The winners of the GMAT game show

January 22, 2019

January 22, 2019

10:00 PM PST

11:00 PM PST

In case you didn’t notice, we recently held the 1st ever GMAT game show and it was awesome! See who won a full GMAT course, and register to the next one.

# Recently, a plane crashed near the outskirts of Berlin within minutes

Author Message
TAGS:

### Hide Tags

Intern
Joined: 12 Feb 2013
Posts: 17
Location: India
Concentration: Strategy, Entrepreneurship
GMAT 1: 780 Q51 V44
GPA: 3.85
Recently, a plane crashed near the outskirts of Berlin within minutes  [#permalink]

### Show Tags

22 Jan 2016, 04:47
4
6
00:00

Difficulty:

75% (hard)

Question Stats:

47% (01:37) correct 53% (01:35) wrong based on 372 sessions

### HideShow timer Statistics

Recently, a plane crashed near the outskirts of Berlin within minutes after its takeoff from Berlin airport. Initial analysis confirmed that the crash was caused by either the usage of substandard fuel or a fault in the control board. Since the airport staff tested the control board before the plane took off, analysts hypothesize that the reason behind the plane crash was substandard fuel.

Which of the following options, if true, most strengthens the analysts’ hypothesis?

A. The black box, upon inspection, was found to belong to a generation of models more compatible with fighter planes than with passenger planes.
B. Upon enquiry, the staff at Berlin airport confirmed that they indeed checked the control board before the plane took off.
C. Using a low quality fuel can lead to engine failure and a subsequent plane crash.
D. All the testing conducted by the airport staff is done very extensively to avoid any lapses.
E. The plane belongs to the ZX3V series which contains a fuel combustion engine that is notoriously famous for explosions within minutes after takeoff.
Intern
Joined: 19 Jan 2016
Posts: 45
Recently, a plane crashed near the outskirts of Berlin within minutes  [#permalink]

### Show Tags

Updated on: 22 Jan 2016, 19:28
3
Pronz wrote:
Recently, a plane crashed near the outskirts of Berlin within minutes after its takeoff from Berlin airport. Initial analysis confirmed that the crash was caused by either the usage of substandard fuel or a fault in the control board. Since the airport staff tested the control board before the plane took off, analysts hypothesize that the reason behind the plane crash was substandard fuel.

Which of the following options, if true, most strengthens the analysts’ hypothesis?

A. The black box, upon inspection, was found to belong to a generation of models more compatible with fighter planes than with passenger planes.
B. Upon enquiry, the staff at Berlin airport confirmed that they indeed checked the control board before the plane took off.
C. Using a low quality fuel can lead to engine failure and a subsequent plane crash.
D. All the testing conducted by the airport staff is done very extensively to avoid any lapses.
E. The plane belongs to the ZX3V series which contains a fuel combustion engine that is notoriously famous for explosions within minutes after takeoff.

Premise 1: A plane crashed after its takeoff.
Premise 2: Analyst: Crash reasons = the usage of substandard fuel or a fault in the control board.
Premise 3: Airport staff tested the control board before the plane took off
Conclusion: Analysts hypothesize that the reason = substandard fuel.

A. The black box, upon inspection, was found to belong to a generation of models more compatible with fighter planes than with passenger planes. ==> new information, there are no reason for a black box to position here => WRONG

B. Upon enquiry, the staff at Berlin airport confirmed that they indeed checked the control board before the plane took off. ==> challenge the premise 3=> WRONG

C. Using a low quality fuel can lead to engine failure and a subsequent plane crash. ==> show that substandard fuel cause crash => MAY BE RIGHT

D. All the testing conducted by the airport staff is done very extensively to avoid any lapses. ==> support for the Premise 3 and eliminate the provision that the test result may show negative result (which may cause crash), as the premise 3 do not tell exactly about the test result ==> MAY BE RIGHT

E. The plane belongs to the ZX3V series which contains a fuel combustion engine that is notoriously famous for explosions within minutes after takeoff ==> this answer choice tell about another reason may cause crash and therefore Weaken the conclusion => WRONG

Now we come back again to C and D

C: When re-think, we can realize that this answer choice tell about a natural truth, but does not provide any proof that this plane use substandard fuel. Actually, it is more likely a paraphrase of the analysis. ==> WRONG

The only left one is D
_________________

---------------------------------------------------------
Please kudos me if this helps. Thank you.

Originally posted by johng2016 on 22 Jan 2016, 05:32.
Last edited by johng2016 on 22 Jan 2016, 19:28, edited 1 time in total.
Manager
Joined: 23 Jul 2014
Posts: 88
Location: India
WE: Information Technology (Computer Software)
Re: Recently, a plane crashed near the outskirts of Berlin within minutes  [#permalink]

### Show Tags

22 Jan 2016, 07:54
Analysis of the argument: The plane could only crash for two reasons
2.Control board fault
Airport authority already checked the control board before plane took off

So, for conclusion to be correct, i.e. the plane did crash because of Bad fuel , we have have eliminate any other issues that could contribute to the crash and bad fuel should be the only factor solely responsible for the crash.

Since we have only two contributing factors as stated in the argument and anything stated in the argument is 100% true, therefore we have make sure that all the checks(tests) done by airport authority are 100% full proof and there is nothing that escaped their test cases.And this is what is stated in option D: => All the testing conducted by the airport staff is done very extensively to avoid any lapses.

_________________

The Mind ~ Muscle Connection
My GMAT Journey is Complete.Going to start the MBA in Information Management from 2016
Good Luck everyone.

SVP
Joined: 12 Dec 2016
Posts: 1606
Location: United States
GMAT 1: 700 Q49 V33
GPA: 3.64
Re: Recently, a plane crashed near the outskirts of Berlin within minutes  [#permalink]

### Show Tags

09 Jan 2018, 22:43
boil down to B and D.
B just reiterates what is said in the argument.
BSchool Forum Moderator
Joined: 28 Mar 2017
Posts: 1219
Location: India
GMAT 1: 730 Q49 V41
GPA: 4
Re: Recently, a plane crashed near the outskirts of Berlin within minutes  [#permalink]

### Show Tags

18 Jan 2018, 11:53
Recently, a plane crashed near the outskirts of Berlin within minutes after its takeoff from Berlin airport. Initial analysis confirmed that the crash was caused by either the usage of substandard fuel or a fault in the control board. Since the airport staff tested the control board before the plane took off, analysts hypothesize that the reason behind the plane crash was substandard fuel.

Which of the following options, if true, most strengthens the analysts’ hypothesis?

A. The black box, upon inspection, was found to belong to a generation of models more compatible with fighter planes than with passenger planes. -This provides and alternate explanation for the crash. WEAKENER.
B. Upon enquiry, the staff at Berlin airport confirmed that they indeed checked the control board before the plane took off. -Asking a criminal whether he committed the crime or not won't get you a correct answer. INCORRECT.
C. Using a low quality fuel can lead to engine failure and a subsequent plane crash. -We already know this from the argument that engine failure causes plane crash. INCORRECT.
D. All the testing conducted by the airport staff is done very extensively to avoid any lapses. -This removes any alternative explanation for the crash. CORRECT.
E. The plane belongs to the ZX3V series which contains a fuel combustion engine that is notoriously famous for explosions within minutes after takeoff. -This provides and alternate explanation for the crash. WEAKENER.
_________________
Manager
Joined: 30 Aug 2017
Posts: 84
Location: Korea, Republic of
GMAT 1: 700 Q51 V31
GPA: 3.68
Re: Recently, a plane crashed near the outskirts of Berlin within minutes  [#permalink]

### Show Tags

18 Jan 2018, 18:43
hard but typical question

avoid reiterated statement.
VP
Status: Learning
Joined: 20 Dec 2015
Posts: 1041
Location: India
Concentration: Operations, Marketing
GMAT 1: 670 Q48 V36
GRE 1: Q157 V157
GPA: 3.4
WE: Engineering (Manufacturing)
Re: Recently, a plane crashed near the outskirts of Berlin within minutes  [#permalink]

### Show Tags

21 Jun 2018, 09:36
Pronz wrote:
Recently, a plane crashed near the outskirts of Berlin within minutes after its takeoff from Berlin airport. Initial analysis confirmed that the crash was caused by either the usage of substandard fuel or a fault in the control board. Since the airport staff tested the control board before the plane took off, analysts hypothesize that the reason behind the plane crash was substandard fuel.

Which of the following options, if true, most strengthens the analysts’ hypothesis?

A. The black box, upon inspection, was found to belong to a generation of models more compatible with fighter planes than with passenger planes.
B. Upon enquiry, the staff at Berlin airport confirmed that they indeed checked the control board before the plane took off.
C. Using a low quality fuel can lead to engine failure and a subsequent plane crash.
D. All the testing conducted by the airport staff is done very extensively to avoid any lapses.
E. The plane belongs to the ZX3V series which contains a fuel combustion engine that is notoriously famous for explosions within minutes after takeoff.

A very good question .
Imo D

A is just outside the scope of the argument .
B Is just restatement of one of the premise of the argument .
C Well this may be true but we do know weather it was used in the plane .
D Correct if in fact this is the case then we have reasons that the crash was caused by the substandard fuel .
E Again this out of scope.
_________________

Manager
Joined: 31 Jul 2017
Posts: 191
Location: India
GMAT 1: 500 Q47 V15
GPA: 3.4
WE: Information Technology (Computer Software)
Re: Recently, a plane crashed near the outskirts of Berlin within minutes  [#permalink]

### Show Tags

21 Jun 2018, 17:47
Recently, a plane crashed near the outskirts of Berlin within minutes after its takeoff from Berlin airport. Initial analysis confirmed that the crash was caused by either the usage of substandard fuel or a fault in the control board. Since the airport staff tested the control board before the plane took off, analysts hypothesize that the reason behind the plane crash was substandard fuel.

Which of the following options, if true, most strengthens the analysts’ hypothesis?

Premise :
1) Plane crashed minutes after its takeoff.
2) The crash might be because of fault in control Board
3) tested the control board before the plane took off.

analysts’ hypothesis:- the reason behind the plane crash was substandard fuel.

Pre-thinking:
Any option that provide us information about
1) impact of using substandard fuel will strengthen the Conclusion or
2) No fault in Control board tested before plane took off will strengthen the Conclusion

A. The black box, upon inspection, was found to belong to a generation of models more compatible with fighter planes than with passenger planes.
New Info - Black box was never discussed in the passage. So we can't say if it will strengthen or weaken the argument

B. Upon enquiry, the staff at Berlin airport confirmed that they indeed checked the control board before the plane took off.
This is just repeat of statement given in premise. We need some new info.

C. Using a low quality fuel can lead to engine failure and a subsequent plane crash.
I think this is inline with our Pre-thinking. Hold on to it.

D. All the testing conducted by the airport staff is done very extensively to avoid any lapses.
It specifies that all the testing conducted would fix the control board issue, if any. This is also inline with our Pre-thinking. Hold on to it.

E. The plane belongs to the ZX3V series which contains a fuel combustion engine that is notoriously famous for explosions within minutes after takeoff.

C & D both are inline with our pre-thinking. How to eliminate one of these 2 choices?

_________________

If it helps you please press Kudos!

Thank You
Sudhanshu

Re: Recently, a plane crashed near the outskirts of Berlin within minutes &nbs [#permalink] 21 Jun 2018, 17:47
Display posts from previous: Sort by