It is currently 16 Dec 2017, 05:11

Close

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
Your Progress

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

Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.

Close

Request Expert Reply

Confirm Cancel

Events & Promotions

Events & Promotions in June
Open Detailed Calendar

If a,b, and C are integers, is a-b+c greater than a+b-c? 1)

  new topic post reply Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
Senior Manager
Senior Manager
User avatar
Joined: 02 Sep 2006
Posts: 253

Kudos [?]: 78 [0], given: 0

If a,b, and C are integers, is a-b+c greater than a+b-c? 1) [#permalink]

Show Tags

New post 01 Mar 2007, 01:27
00:00
A
B
C
D
E

Difficulty:

(N/A)

Question Stats:

60% (00:39) correct 40% (00:30) wrong based on 5 sessions

HideShow timer Statistics

If a,b, and C are integers, is a-b+c greater than a+b-c?

1) b is negative
2) c is positive

OPEN DISCUSSION OF THIS QUESTION IS HERE: https://gmatclub.com/forum/if-a-b-and-c ... 27145.html
[Reveal] Spoiler: OA

Kudos [?]: 78 [0], given: 0

Director
Director
User avatar
Joined: 05 Feb 2006
Posts: 893

Kudos [?]: 131 [0], given: 0

Re: If a,b, and C are integers, is a-b+c greater than a+b-c? 1) [#permalink]

Show Tags

New post 01 Mar 2007, 01:36
I think C

The question essiantially asks whether b<c

1) not sufficient
2) not sufficient

1)+2) obviously sufficient

Kudos [?]: 131 [0], given: 0

Senior Manager
Senior Manager
avatar
Joined: 19 Feb 2007
Posts: 325

Kudos [?]: 71 [0], given: 0

Re: If a,b, and C are integers, is a-b+c greater than a+b-c? 1) [#permalink]

Show Tags

New post 22 Oct 2007, 06:06
If a,b, and c are integers, is a – b + c greater than a + b – c ?

(1) b is negative.
(2) c is positive.

Kudos [?]: 71 [0], given: 0

Senior Manager
Senior Manager
User avatar
Joined: 04 Jan 2006
Posts: 276

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

Re: If a,b, and C are integers, is a-b+c greater than a+b-c? 1) [#permalink]

Show Tags

New post 22 Oct 2007, 06:29
sidbidus wrote:
If a,b, and c are integers, is a – b + c greater than a + b – c ?

(1) b is negative.
(2) c is positive.


From question stem, a + b - c < a - b + c
2b < 2c
b < c

As a result, we only need to prove that b < c

1. b < 0, no info about c, INSUFF
2. c > 0, no info about b, INSUFF

1. + 2.) Clearly b (negative) < c (positive), SUFF

The answer is (C)

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

Senior Manager
Senior Manager
avatar
Joined: 19 Feb 2007
Posts: 325

Kudos [?]: 71 [0], given: 0

Re: If a,b, and C are integers, is a-b+c greater than a+b-c? 1) [#permalink]

Show Tags

New post 22 Oct 2007, 22:23
Somehow the OA is (A). Can anyone explain why???

Kudos [?]: 71 [0], given: 0

GMAT Club Legend
GMAT Club Legend
User avatar
Joined: 07 Jul 2004
Posts: 5032

Kudos [?]: 457 [0], given: 0

Location: Singapore
Re: If a,b, and C are integers, is a-b+c greater than a+b-c? 1) [#permalink]

Show Tags

New post 23 Oct 2007, 01:02
Case1:
a-b+c > a+b-c?
-2b > -2c?
b < c?

Case2:
a-b+c < a+b-c
-2b < -2c
b > c

St1:
If b = -1 and c = 2, then a-b+c > a+b-c
If b = -1 and c = -2, then a-b+c < a+b-c
Insufficient.

St2:
If c = 2, and b = 1, then a-b+c > a+b-c
If c = 2 and b = 3, then a-b+c < a+b-c
Insufficient.

St1 and St2:
If c is positive and b is negative, then b<c and so a-b+c > a+b-c. Sufficient.

I go for C too.

Kudos [?]: 457 [0], given: 0

Intern
Intern
User avatar
Joined: 09 Oct 2007
Posts: 17

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

Re: If a,b, and C are integers, is a-b+c greater than a+b-c? 1) [#permalink]

Show Tags

New post 23 Oct 2007, 05:28
sidbidus wrote:
Somehow the OA is (A). Can anyone explain why???


OA is not A. This is the question 17 from OG 10, DS Sample Set, page 238. OA is C.

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

Manager
Manager
avatar
Joined: 23 Jan 2008
Posts: 108

Kudos [?]: 101 [0], given: 0

Re: If a,b, and C are integers, is a-b+c greater than a+b-c? 1) [#permalink]

Show Tags

New post 26 Jan 2008, 13:12
If a, b and c are integers, is a-b+c greater than a+b-c ?

(1) b is negative
(2) c is positive

Kudos [?]: 101 [0], given: 0

Senior Manager
Senior Manager
avatar
Joined: 22 Sep 2005
Posts: 278

Kudos [?]: 246 [0], given: 1

Re: If a,b, and C are integers, is a-b+c greater than a+b-c? 1) [#permalink]

Show Tags

New post 26 Jan 2008, 13:30
blog wrote:
If a, b and c are integers, is a-b+c greater than a+b-c ?

(1) b is negative
(2) c is positive



C

a-b+c > a+b-c. Then a-a+2c > 2b.

They ask if c>b

1) INSUF because we don't know anything about b
2) INSUF " " c

Both together, SUF

Kudos [?]: 246 [0], given: 1

VP
VP
User avatar
Joined: 03 Apr 2007
Posts: 1339

Kudos [?]: 878 [0], given: 10

Reviews Badge
Re: If a,b, and C are integers, is a-b+c greater than a+b-c? 1) [#permalink]

Show Tags

New post 05 Jul 2008, 13:38
If a,b, and c are integers, is a – b + c greater than a + b – c ?
(1) b is negative.
(2) c is positive.

Kudos [?]: 878 [0], given: 10

Senior Manager
Senior Manager
User avatar
Joined: 12 Apr 2008
Posts: 499

Kudos [?]: 253 [0], given: 4

Location: Eastern Europe
Schools: Oxford
Re: If a,b, and C are integers, is a-b+c greater than a+b-c? 1) [#permalink]

Show Tags

New post 05 Jul 2008, 16:02
Quote:
If a,b, and c are integers, is a – b + c greater than a + b – c ?
(1) b is negative.
(2) c is positive.


If we transform the inequality, we can see that the question asks us whether b<c.
(transformation: a – b + c > a + b – c <=> - b+c > b-c <=> c>b)

St 1. doesn’t help us to answer the question – c could be anything, and thus we can conclude nothing about the inequality. You can construct examples if you like.
Similarly, St 2. is also insufficient.

Together: b<0<c => b<c => inequality is true.

Hence, C.

Kudos [?]: 253 [0], given: 4

SVP
SVP
avatar
Joined: 28 Dec 2005
Posts: 1543

Kudos [?]: 189 [0], given: 2

Re: If a,b, and C are integers, is a-b+c greater than a+b-c? 1) [#permalink]

Show Tags

New post 05 Jul 2008, 19:39
I think its C. The question is basically asking you to determine if c > b .

From stat 1, you know b is neg, but you dont know if c>b, i.e. c=-2 and b=-1, or c=-1 and b=-2. Insuff.

Same argument for stat 2.

Together, you know that c>b since c is positive and b is negative

Kudos [?]: 189 [0], given: 2

VP
VP
User avatar
Joined: 03 Apr 2007
Posts: 1339

Kudos [?]: 878 [0], given: 10

Reviews Badge
Re: If a,b, and C are integers, is a-b+c greater than a+b-c? 1) [#permalink]

Show Tags

New post 06 Jul 2008, 06:43
greenoak wrote:
Quote:
If a,b, and c are integers, is a – b + c greater than a + b – c ?
(1) b is negative.
(2) c is positive.


If we transform the inequality, we can see that the question asks us whether b<c.
(transformation: a – b + c > a + b – c <=> - b+c > b-c <=> c>b)

St 1. doesn’t help us to answer the question – c could be anything, and thus we can conclude nothing about the inequality. You can construct examples if you like.
Similarly, St 2. is also insufficient.

Together: b<0<c => b<c => inequality is true.

Hence, C.


I used the same approach :)

Kudos [?]: 878 [0], given: 10

Intern
Intern
avatar
Joined: 19 Sep 2010
Posts: 13

Kudos [?]: 53 [0], given: 4

Re: If a,b, and C are integers, is a-b+c greater than a+b-c? 1) [#permalink]

Show Tags

New post 10 Sep 2011, 10:34
Id a,b, and c are integers, is a-b+c > a+b-c ?
1) b is negative.
2) c is positive.

c>b, it is from the question after doing subtractions and additions, now my question is statement 2 is sufficient to answer the question. but the answer is not b. any one please explain.

Kudos [?]: 53 [0], given: 4

VP
VP
User avatar
S
Status: Top MBA Admissions Consultant
Joined: 24 Jul 2011
Posts: 1354

Kudos [?]: 663 [0], given: 20

GMAT 1: 780 Q51 V48
GRE 1: 1540 Q800 V740
Re: If a,b, and C are integers, is a-b+c greater than a+b-c? 1) [#permalink]

Show Tags

New post 10 Sep 2011, 10:39
Is a - b + c > a + b - c
=> Is c > b ?

Using statement (1): c could still be greater or lesser than b even if b is negative. Insufficient.
Using statement (2): c could still be greater of lesser than b even if c is positive. Insufficient.

Combining (1) and (2): If b is negative and c is positive then c is definitely greater than b. Sufficient.

Answer (C)
_________________

GyanOne | Top MBA Rankings and MBA Admissions Blog

Top MBA Admissions Consulting | Top MiM Admissions Consulting

Premium MBA Essay Review|Best MBA Interview Preparation|Exclusive GMAT coaching

Get a FREE Detailed MBA Profile Evaluation | Call us now +91 98998 31738

Kudos [?]: 663 [0], given: 20

Expert Post
Math Expert
User avatar
V
Joined: 02 Sep 2009
Posts: 42630

Kudos [?]: 135805 [0], given: 12714

Re: If a,b, and C are integers, is a-b+c greater than a+b-c? 1) [#permalink]

Show Tags

New post 24 Nov 2017, 08:04
faifai0714 wrote:
If a,b, and C are integers, is a-b+c greater than a+b-c?

1) b is negative
2) c is positive



If a, b, and c are integers, is a - b + c greater than a+ b - c?

Is \(a-b+c>a+b-c\)? --> is \(2c>2b\)? --> is \(c>b\)?

(1) b is negative. Clearly insufficient.
(2) c is positive. Clearly insufficient.

(1)+(2) \((c=positive)>(b=negative)\). Sufficient.

Answer: C.

OPEN DISCUSSION OF THIS QUESTION IS HERE: https://gmatclub.com/forum/if-a-b-and-c ... 27145.html
_________________

New to the Math Forum?
Please read this: Ultimate GMAT Quantitative Megathread | All You Need for Quant | PLEASE READ AND FOLLOW: 12 Rules for Posting!!!

Resources:
GMAT Math Book | Triangles | Polygons | Coordinate Geometry | Factorials | Circles | Number Theory | Remainders; 8. Overlapping Sets | PDF of Math Book; 10. Remainders | GMAT Prep Software Analysis | SEVEN SAMURAI OF 2012 (BEST DISCUSSIONS) | Tricky questions from previous years.

Collection of Questions:
PS: 1. Tough and Tricky questions; 2. Hard questions; 3. Hard questions part 2; 4. Standard deviation; 5. Tough Problem Solving Questions With Solutions; 6. Probability and Combinations Questions With Solutions; 7 Tough and tricky exponents and roots questions; 8 12 Easy Pieces (or not?); 9 Bakers' Dozen; 10 Algebra set. ,11 Mixed Questions, 12 Fresh Meat

DS: 1. DS tough questions; 2. DS tough questions part 2; 3. DS tough questions part 3; 4. DS Standard deviation; 5. Inequalities; 6. 700+ GMAT Data Sufficiency Questions With Explanations; 7 Tough and tricky exponents and roots questions; 8 The Discreet Charm of the DS; 9 Devil's Dozen!!!; 10 Number Properties set., 11 New DS set.


What are GMAT Club Tests?
Extra-hard Quant Tests with Brilliant Analytics

Kudos [?]: 135805 [0], given: 12714

Re: If a,b, and C are integers, is a-b+c greater than a+b-c? 1)   [#permalink] 24 Nov 2017, 08:04
Display posts from previous: Sort by

If a,b, and C are integers, is a-b+c greater than a+b-c? 1)

  new topic post reply Question banks Downloads My Bookmarks Reviews Important topics  


GMAT Club MBA Forum Home| About| Terms and Conditions| GMAT Club Rules| Contact| Sitemap

Powered by phpBB © phpBB Group | Emoji artwork provided by EmojiOne

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®.