Find all School-related info fast with the new School-Specific MBA Forum

 It is currently 25 Oct 2016, 21:27

### 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 June
Open Detailed Calendar

# If A, then B. If B, then C. If C, then D. If all of the

Author Message
TAGS:

### Hide Tags

Manager
Joined: 05 Jun 2009
Posts: 111
Followers: 3

Kudos [?]: 183 [2] , given: 4

If A, then B. If B, then C. If C, then D. If all of the [#permalink]

### Show Tags

26 Sep 2009, 02:13
2
KUDOS
2
This post was
BOOKMARKED
00:00

Difficulty:

(N/A)

Question Stats:

52% (01:00) correct 48% (00:25) wrong based on 63 sessions

### HideShow timer Statistics

If A, then B.
If B, then C.
If C, then D.
If all of the statements above are true, which of the following must also be true?
(A) If D, then A.
(B) If not B, then not C.
(C) If not D, then not A.
(D) If D, then E.
(E) If not A, then not D.

Manager
Joined: 01 Jul 2009
Posts: 235
Followers: 3

Kudos [?]: 21 [0], given: 39

### Show Tags

27 Sep 2009, 10:50
sacmanitin wrote:
If A, then B.
If B, then C.
If C, then D.
If all of the statements above are true, which of the following must also be true?
(A) If D, then A.
(B) If not B, then not C.
(C) If not D, then not A.
(D) If D, then E.
(E) If not A, then not D.

B.

We dont have a statement like D->A, so option A is out. option D is out as well, since there's no "E". Option E is not true, since it may be C then D. D is flawed as well, since it can be not D, but can be A. But if not B, then no C, since B-> C.

So option B is correct. Hope this helps.
_________________

Consider giving Kudos if you like the post.

Verbal Forum Moderator
Joined: 02 Aug 2009
Posts: 4098
Followers: 287

Kudos [?]: 2987 [2] , given: 100

### Show Tags

27 Sep 2009, 11:05
2
KUDOS
Expert's post
hi sacmanitin... ans is C..
first u have to understand what 'if A, then B.' means...
anything which is A has to be B i.e. A is subset of B.... possible choices are..
i) 'if not A, then not B... need not be true as it could be something not part of both..
ii)'if B, then A.....need not be true as it could be something in B-A...
various other choices ..only true choice is if not B, then not A...
if it is not a part of B , itcannot be in A... putting this rule in ans only C remains...
_________________

Absolute modulus :http://gmatclub.com/forum/absolute-modulus-a-better-understanding-210849.html#p1622372
Combination of similar and dissimilar things : http://gmatclub.com/forum/topic215915.html

Manager
Joined: 14 Dec 2008
Posts: 169
Followers: 1

Kudos [?]: 22 [0], given: 39

### Show Tags

27 Sep 2009, 11:14
my ans = c

if a then b => if not b, then not a, just by sam elogic reverse from last statement u will reach ans =c
Manager
Joined: 05 Jun 2009
Posts: 111
Followers: 3

Kudos [?]: 183 [2] , given: 4

### Show Tags

27 Sep 2009, 13:18
2
KUDOS
thanks chetan ,
i now able to attack such problems ,from your reasoning ,i drew a diagram
all the conditions can be represent like [d [c [b [a] ] ] ]

now from question stem

(A) If D, then A. ( it can be anything from d ,c ,b and a so eliminate)
(B) If not B, then not C. (if not be then it can be c or not c ,eliminate)
(C) If not D, then not A. (if not d then it is outside the biggest box so surely out of smallest
box i e a ,correct)
(D) If D, then E. (no information ,eliminate)
(E) If not A, then not D. (it not in the smallest box ie not a ,it can be anything from b,c,d or
not d ,so eliminate this choice as well)

thanks for that approach ...
Intern
Joined: 21 Dec 2008
Posts: 3
Schools: CBS, Stanford
Followers: 0

Kudos [?]: 0 [0], given: 0

### Show Tags

28 Oct 2009, 08:51
Great Q&A
Forum Moderator
Status: mission completed!
Joined: 02 Jul 2009
Posts: 1426
GPA: 3.77
Followers: 181

Kudos [?]: 828 [0], given: 621

### Show Tags

18 Mar 2011, 00:00
premise: A=>B=>C=>D

if D do not happen than C was not influenced by B, which in turn was not influenced by A. thus if not D then not A.

asw is C.
_________________

Audaces fortuna juvat!

GMAT Club Premium Membership - big benefits and savings

Retired Moderator
Status: 2000 posts! I don't know whether I should feel great or sad about it! LOL
Joined: 04 Oct 2009
Posts: 1712
Location: Peru
Schools: Harvard, Stanford, Wharton, MIT & HKS (Government)
WE 1: Economic research
WE 2: Banking
WE 3: Government: Foreign Trade and SMEs
Followers: 93

Kudos [?]: 851 [0], given: 109

### Show Tags

14 Aug 2011, 22:04
+1 C
_________________

"Life’s battle doesn’t always go to stronger or faster men; but sooner or later the man who wins is the one who thinks he can."

My Integrated Reasoning Logbook / Diary: http://gmatclub.com/forum/my-ir-logbook-diary-133264.html

GMAT Club Premium Membership - big benefits and savings

BSchool Forum Moderator
Status: Flying over the cloud!
Joined: 17 Aug 2011
Posts: 913
Location: Viet Nam
GMAT Date: 06-06-2014
GPA: 3.07
Followers: 71

Kudos [?]: 566 [0], given: 44

### Show Tags

05 Nov 2011, 01:14
(D) is totally wrong
(A) is wrong because of reverse
(B) is wrong. The premise did not mention If not B, then not C. Very clearly
(E) is wrong, not A but appearance of C will make D true

POE, I got (C)

My another explanation: Imagine that A belong to B, B belong to C, and C belongs to D. You draw the circle around it like (D(C(B(A)))), you will eliminate all except for answer choice (C)
_________________

Rules for posting in verbal gmat forum, read it before posting anything in verbal forum
Giving me + 1 kudos if my post is valuable with you

The more you like my post, the more you share to other's need

CR: Focus of the Week: Must be True Question

Manager
Joined: 08 Jul 2008
Posts: 148
Followers: 0

Kudos [?]: 3 [0], given: 1

Re: If A, then B. If B, then C. If C, then D. If all of the [#permalink]

### Show Tags

08 Nov 2011, 14:35
easy one. Correct answer is C
GMAT Club Legend
Joined: 01 Oct 2013
Posts: 10267
Followers: 857

Kudos [?]: 187 [0], given: 0

Re: If A, then B. If B, then C. If C, then D. If all of the [#permalink]

### Show Tags

07 Feb 2016, 11:51
Hello from the GMAT Club VerbalBot!

Thanks to another GMAT Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos).

Want to see all other topics I dig out? Follow me (click follow button on profile). You will receive a summary of all topics I bump in your profile area as well as via email.
Re: If A, then B. If B, then C. If C, then D. If all of the   [#permalink] 07 Feb 2016, 11:51
Similar topics Replies Last post
Similar
Topics:
If A, then B. If B, then C. If C, then D. If all of the 9 28 May 2007, 23:44
If A, then B. If B, then C. If C, then D. If all of the 3 08 Mar 2007, 18:36
If A, then B. If B, then C. If C, then D. If all of the 1 28 Feb 2007, 16:32
If A, then B. If B, then C. If C, then D. If all of the 11 24 Feb 2007, 04:32
If A, then B. If B, then C. If C, then D. If all of the 5 06 Nov 2006, 09:29
Display posts from previous: Sort by

# If A, then B. If B, then C. If C, then D. If all of the

 Powered by phpBB © phpBB Group and phpBB SEO Kindly note that the GMAT® test is a registered trademark of the Graduate Management Admission Council®, and this site has neither been reviewed nor endorsed by GMAC®.