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

 It is currently 20 Oct 2018, 01:38

### 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

# Y has been believed to cause Z. A new report, noting that Y

Author Message
Manager
Joined: 22 Jun 2008
Posts: 97
Schools: Darden School of Business (Class of 2012)
Y has been believed to cause Z. A new report, noting that Y  [#permalink]

### Show Tags

04 Aug 2008, 11:30
2
00:00

Difficulty:

(N/A)

Question Stats:

78% (01:02) correct 22% (01:39) wrong based on 203 sessions

### HideShow timer Statistics

Y has been believed to cause Z. A new report, noting that Y and Z are often observed to be preceded by X, suggests that X, not Y, may be the cause of Z.
Which of the following further observations would best support the new report’s suggestion?
(A) In cases where X occurs but Y does not, X is usually followed by Z.
(B) In cases where X occurs, followed by Y, Y is usually followed by Z.
(C) In cases where Y occurs but X does not, Y is usually followed by Z.
(D) In cases where Y occurs but Z does not, Y is usually preceded by X.
(E) In cases where Z occurs, it is usually preceded by X and Y.
VP
Joined: 17 Jun 2008
Posts: 1242
Re: Y has been believed to cause Z. A new report, noting that Y  [#permalink]

### Show Tags

04 Aug 2008, 13:20
1
lordw wrote:
Y has been believed to cause Z. A new report, noting that Y and Z are often observed to be preceded by X, suggests that X, not Y, may be the cause of Z.
Which of the following further observations would best support the new report’s suggestion?
(A) In cases where X occurs but Y does not, X is usually followed by Z. -> says in the absense of Y Z occurs
(B) In cases where X occurs, followed by Y, Y is usually followed by Z. ->weakens
(C) In cases where Y occurs but X does not, Y is usually followed by Z. -> this opposes the suggestion
(D) In cases where Y occurs but Z does not, Y is usually preceded by X. -> thsi is irrelevant
(E) In cases where Z occurs, it is usually preceded by X and Y. -> does not say Y does not cause Z

To prove : X not Y causes Z

hence (A) is apt for this proof
_________________

cheers
Its Now Or Never

Intern
Joined: 01 Aug 2008
Posts: 32
Re: Y has been believed to cause Z. A new report, noting that Y  [#permalink]

### Show Tags

05 Aug 2008, 01:32
we need to prove the situation where X occurs but not Y, followed by Z. Hence A will be correct choice
Intern
Joined: 29 May 2009
Posts: 23
Y has been believed to cause Z. A new report, noting that Y  [#permalink]

### Show Tags

17 Aug 2009, 09:21
1
Y has been believed to cause Z. A new report, noting that Y and Z are often observed to be preceded by X, suggests that X, not Y, may be the cause of Z.
Which of the following further observations would best support the new report’s suggestion?
(A) In cases where X occurs but Y does not, X is usually followed by Z.
(B) In cases where X occurs, followed by Y, Y is usually followed by Z.
(C) In cases where Y occurs but X does not, Y is usually followed by Z.
(D) In cases where Y occurs but Z does not, Y is usually preceded by X.
(E) In cases where Z occurs, it is usually preceded by X and Y.

Do Not Give Ans Without Explanation.
Manager
Joined: 17 Dec 2007
Posts: 96

### Show Tags

17 Aug 2009, 10:53
1
apramanik wrote:
Y has been believed to cause Z. A new report, noting that Y and Z are often observed to be preceded by X, suggests that X, not Y, may be the cause of Z.
Which of the following further observations would best support the new report’s suggestion?
(A) In cases where X occurs but Y does not, X is usually followed by Z.
(B) In cases where X occurs, followed by Y, Y is usually followed by Z.
(C) In cases where Y occurs but X does not, Y is usually followed by Z.
(D) In cases where Y occurs but Z does not, Y is usually preceded by X.
(E) In cases where Z occurs, it is usually preceded by X and Y.

Do Not Give Ans Without Explanation.

The answer is A. The news reports claim X as cause for Z , but the belief is Y is the cause to Z. A suggests that X occurs followed by Z and Y doesnt occur at all which clearly supports the argument that X can be the root cause of Z instead of the belief that Y is.
Senior Manager
Joined: 16 Apr 2009
Posts: 267

### Show Tags

17 Aug 2009, 16:18
Answer looks A to me as well

A- In cases where X occurs but Y does not, X is usually followed by Z
X is occuring and Y is not ,i.e. X-> Z
_________________

Manager
Joined: 17 Jul 2009
Posts: 243
Concentration: Nonprofit, Strategy
GPA: 3.42
WE: Engineering (Computer Hardware)

### Show Tags

17 Aug 2009, 16:55
A, best supports the hypothesis, because if y doesn't happen but Z is preceded by X, then suggest that X might caused Z instead of Y
Manager
Joined: 17 Mar 2009
Posts: 243

### Show Tags

18 Aug 2009, 05:22
A for me too. agree with the above explanations.. post the OA
Manager
Joined: 02 Jun 2011
Posts: 67
Y has been believed to cause Z. A new report, noting that Y  [#permalink]

### Show Tags

07 Sep 2012, 13:10
Y has been believed to cause Z. A new report, noting that Y and Z are often observed to be preceded by X, suggests that X, not Y, may be the cause of Z.
Which of the following further observations would best support the new report’s suggestion?
(A) In cases where X occurs but Y does not, X is usually followed by Z.
(B) In cases where X occurs, followed by Y, Y is usually followed by Z.
(C) In cases where Y occurs but X does not, Y is usually followed by Z.
(D) In cases where Y occurs but Z does not, Y is usually preceded by X.
(E) In cases where Z occurs, it is usually preceded by X and Y.
Manager
Joined: 23 Aug 2011
Posts: 74
Re: Y has been believed to cause Z. A new report, noting  [#permalink]

### Show Tags

07 Sep 2012, 14:38
A it is.

1)Y has been believed to cause Z (Y -> Z)
2)A new report, noting that Y and Z are often observed to be preceded by X; ( X -> [Z,Y])
3.)Conclusion :suggests that X, not Y, may be the cause of Z. (X -> Z)
To support new suggestion, Z must be preceded by X.

(A) In cases where X occurs but Y does not, X is usually followed by Z. ( X-> Z); this is true since Y=null
(B) In cases where X occurs, followed by Y, Y is usually followed by Z. (X->Y->Z this violates point 3.
(C) In cases where Y occurs but X does not, Y is usually followed by Z. (Y->Z) this does not strenthen conclusion coz x is missing.
(D) In cases where Y occurs but Z does not, Y is usually preceded by X.(z is missing)
(E) In cases where Z occurs, it is usually preceded by X and Y. (X,Y -> Z) it is reversed and is incorrect.
_________________

Whatever one does in life is a repetition of what one has done several times in one's life!
If my post was worth it, then i deserve kudos

Manager
Joined: 02 Jun 2011
Posts: 67
Re: Y has been believed to cause Z. A new report, noting  [#permalink]

### Show Tags

08 Sep 2012, 04:20
conty911 wrote:
A it is.

1)Y has been believed to cause Z (Y -> Z)
2)A new report, noting that Y and Z are often observed to be preceded by X; ( X -> [Z,Y])
3.)Conclusion :suggests that X, not Y, may be the cause of Z. (X -> Z)
To support new suggestion, Z must be preceded by X.

(A) In cases where X occurs but Y does not, X is usually followed by Z. ( X-> Z); this is true since Y=null
(B) In cases where X occurs, followed by Y, Y is usually followed by Z. (X->Y->Z this violates point 3.
(C) In cases where Y occurs but X does not, Y is usually followed by Z. (Y->Z) this does not strenthen conclusion coz x is missing.
(D) In cases where Y occurs but Z does not, Y is usually preceded by X.(z is missing)
(E) In cases where Z occurs, it is usually preceded by X and Y. (X,Y -> Z) it is reversed and is incorrect.

Thanks dear, I have read the question incompletely and based on that I have made my decision. But you explaination work for me.
SVP
Joined: 06 Sep 2013
Posts: 1764
Concentration: Finance
Re: Y has been believed to cause Z. A new report, noting that Y  [#permalink]

### Show Tags

24 Oct 2013, 16:37
apramanik wrote:
Y has been believed to cause Z. A new report, noting that Y and Z are often observed to be preceded by X, suggests that X, not Y, may be the cause of Z.
Which of the following further observations would best support the new report’s suggestion?
(A) In cases where X occurs but Y does not, X is usually followed by Z.
(B) In cases where X occurs, followed by Y, Y is usually followed by Z.
(C) In cases where Y occurs but X does not, Y is usually followed by Z.
(D) In cases where Y occurs but Z does not, Y is usually preceded by X.
(E) In cases where Z occurs, it is usually preceded by X and Y.

Do Not Give Ans Without Explanation.

OK, this one now.

Y has been believed to cause Z. A new report, noting that Y and Z are often observed to be preceded by X, suggests that X, not Y, may be the cause of Z.

So we need to find the case where X ---> Z not Y.

(A) In cases where X occurs but Y does not, X is usually followed by Z.
(B) In cases where X occurs, followed by Y, Y is usually followed by Z.
(C) In cases where Y occurs but X does not, Y is usually followed by Z.
(D) In cases where Y occurs but Z does not, Y is usually preceded by X.
(E) In cases where Z occurs, it is usually preceded by X and Y.

A is what we are looking for.
Happy to discuss

Cheers!
J
Manager
Joined: 22 Apr 2013
Posts: 89
Location: India
Concentration: Finance
GMAT 1: 660 Q48 V33
Re: Y has been believed to cause Z. A new report, noting that Y  [#permalink]

### Show Tags

24 Oct 2013, 19:15
We know that before the report it was
The report suggests that
X leads to Z and not Y.

(A) In cases where X occurs but Y does not, X is usually followed by Z.--- CORRECT, the answer choice clearly shows that X leads to Z because Y does not occur and still X is followed by Z.
(B) In cases where X occurs, followed by Y, Y is usually followed by Z.--- No information about whether X or Y leads to Z. Incorrect.
(C) In cases where Y occurs but X does not, Y is usually followed by Z.--- Incorrect, because the answer choice suggest Y leads to Z. But we want X leads to Z.
(D) In cases where Y occurs but Z does not, Y is usually preceded by X.---- Incorrect, because Only gives information that Y is preceded by X. Also implies that neither Y nor X leads to Z.
(E) In cases where Z occurs, it is usually preceded by X and Y.--- Again no info about which out of X or Y leads to Z.
Manager
Status: 2 months to go
Joined: 11 Oct 2015
Posts: 116
GMAT 1: 730 Q49 V40
GPA: 3.8
Re: Y has been believed to cause Z. A new report, noting that Y  [#permalink]

### Show Tags

22 Jun 2016, 12:00
The question's OA is indeed A

Den
Verbal Forum Moderator
Joined: 13 Feb 2015
Posts: 441
Re: Y has been believed to cause Z. A new report, noting that Y  [#permalink]

### Show Tags

06 Jul 2017, 09:12
Merged topics. Please, search before posting questions!
_________________

Intern
Joined: 19 Apr 2017
Posts: 21
Location: India
WE: Management Consulting (Consulting)
Re: Y has been believed to cause Z. A new report, noting that Y  [#permalink]

### Show Tags

09 Nov 2017, 08:20
A because we need to get Y out of the equation to prove Y ain't it
_________________

We are what we REPEATEDLY do. GREATNESS then is not ACT, but a HABIT.

Re: Y has been believed to cause Z. A new report, noting that Y &nbs [#permalink] 09 Nov 2017, 08:20
Display posts from previous: Sort by