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

It is currently 29 Aug 2014, 20:23

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.

Events & Promotions

Events & Promotions in June
Open Detailed Calendar

If x, y, and z are three integers, are they consecutive inte

  Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
TAGS:
Expert Post
Math Expert
User avatar
Joined: 02 Sep 2009
Posts: 25206
Followers: 3418

Kudos [?]: 25043 [0], given: 2702

If x, y, and z are three integers, are they consecutive inte [#permalink] New post 03 Jan 2014, 05:21
Expert's post
00:00
A
B
C
D
E

Difficulty:

  15% (low)

Question Stats:

80% (01:38) correct 20% (00:40) wrong based on 93 sessions
The Official Guide For GMAT® Quantitative Review, 2ND Edition

If x, y, and z are three integers, are they consecutive integers?

(1) z - x= 2
(2) x < y < z

Data Sufficiency
Question: 20
Category: Arithmetic Properties of numbers
Page: 154
Difficulty: 600


GMAT Club is introducing a new project: The Official Guide For GMAT® Quantitative Review, 2ND Edition - Quantitative Questions Project

Each week we'll be posting several questions from The Official Guide For GMAT® Quantitative Review, 2ND Edition and then after couple of days we'll provide Official Answer (OA) to them along with a slution.

We'll be glad if you participate in development of this project:
1. Please provide your solutions to the questions;
2. Please vote for the best solutions by pressing Kudos button;
3. Please vote for the questions themselves by pressing Kudos button;
4. Please share your views on difficulty level of the questions, so that we have most precise evaluation.

Thank you!
[Reveal] Spoiler: OA

_________________

NEW TO MATH FORUM? PLEASE READ THIS: ALL YOU NEED FOR QUANT!!!

PLEASE READ AND FOLLOW: 11 Rules for Posting!!!

RESOURCES: [GMAT MATH BOOK]; 1. Triangles; 2. Polygons; 3. Coordinate Geometry; 4. Factorials; 5. Circles; 6. Number Theory; 7. Remainders; 8. Overlapping Sets; 9. PDF of Math Book; 10. Remainders; 11. GMAT Prep Software Analysis NEW!!!; 12. SEVEN SAMURAI OF 2012 (BEST DISCUSSIONS) NEW!!!; 12. Tricky questions from previous years. NEW!!!;

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?
25 extra-hard Quant Tests

Get the best GMAT Prep Resources with GMAT Club Premium Membership

Kaplan Promo CodeKnewton GMAT Discount CodesManhattan GMAT Discount Codes
Expert Post
Math Expert
User avatar
Joined: 02 Sep 2009
Posts: 25206
Followers: 3418

Kudos [?]: 25043 [0], given: 2702

Re: If x, y, and z are three integers, are they consecutive inte [#permalink] New post 03 Jan 2014, 05:22
Expert's post
SOLUTION

If x, y, and z are three integers, are they consecutive integers?

(1) z - x= 2 --> z = x + 2. If y = x+1, then the answer is YES, otherwise the answer is NO. Not sufficient.

(2) x < y < z. Clearly insufficient.

(1)+(2) We have that x < y < x + 2, thus y = x+1 (there is only one integer between x and x + 2). Sufficient.

Answer: C.
_________________

NEW TO MATH FORUM? PLEASE READ THIS: ALL YOU NEED FOR QUANT!!!

PLEASE READ AND FOLLOW: 11 Rules for Posting!!!

RESOURCES: [GMAT MATH BOOK]; 1. Triangles; 2. Polygons; 3. Coordinate Geometry; 4. Factorials; 5. Circles; 6. Number Theory; 7. Remainders; 8. Overlapping Sets; 9. PDF of Math Book; 10. Remainders; 11. GMAT Prep Software Analysis NEW!!!; 12. SEVEN SAMURAI OF 2012 (BEST DISCUSSIONS) NEW!!!; 12. Tricky questions from previous years. NEW!!!;

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?
25 extra-hard Quant Tests

Get the best GMAT Prep Resources with GMAT Club Premium Membership

1 KUDOS received
Senior Manager
Senior Manager
avatar
Joined: 06 Aug 2011
Posts: 409
Followers: 2

Kudos [?]: 56 [1] , given: 82

Re: If x, y, and z are three integers, are they consecutive inte [#permalink] New post 03 Jan 2014, 11:15
1
This post received
KUDOS
C

statement 1. x=9 y=20 z=11 it can be anything.===insufficient.


statement2. x<y<y. again insufficient..

both statement togather...8<9<10 or it cud be any sequence.. Sufficient. Ans is c.
_________________

Bole So Nehal.. Sat Siri Akal.. Waheguru ji help me to get 700+ score !

Manager
Manager
User avatar
Status: GMATting
Joined: 21 Mar 2011
Posts: 108
Concentration: Strategy, Technology
GMAT 1: 590 Q45 V27
Followers: 1

Kudos [?]: 59 [0], given: 104

GMAT ToolKit User
Re: If x, y, and z are three integers, are they consecutive inte [#permalink] New post 04 Jan 2014, 09:14
Statement (1) does not give any information about y. So, insufficient.
Statement (2) tells that x<y<z; it could be 8<9<10 or 5<10<15; So, insufficient.

Both combined gives us the clue that x and z differ by 2 and that y is between x and z.

Hence, (C) is sufficient.
Senior Manager
Senior Manager
User avatar
Joined: 03 Feb 2013
Posts: 275
Location: India
Concentration: Operations, Strategy
GPA: 3.3
WE: Engineering (Computer Software)
Followers: 2

Kudos [?]: 7 [0], given: 279

CAT Tests
Re: If x, y, and z are three integers, are they consecutive inte [#permalink] New post 05 Jan 2014, 10:25
Bunuel wrote:
The Official Guide For GMAT® Quantitative Review, 2ND Edition

If x, y, and z are three integers, are they consecutive integers?

(1) z - x= 2
(2) x < y < z


Statement 1) z is greater than x by 2 , we don't know about y. Not sufficient.
Statement 2) the integers need not be consecutive. Not sufficient.

Combining the two statements, z-x = 2 so y can to be between x and z as all are integers. Hence option C)
_________________

Thanks,
Kinjal
Never Give Up !!!

Please click on Kudos, if you think the post is helpful
Linkedin Handle : https://www.linkedin.com/profile/view?id=116231592

Expert Post
Math Expert
User avatar
Joined: 02 Sep 2009
Posts: 25206
Followers: 3418

Kudos [?]: 25043 [0], given: 2702

Re: If x, y, and z are three integers, are they consecutive inte [#permalink] New post 05 Jan 2014, 11:25
Expert's post
SOLUTION

If x, y, and z are three integers, are they consecutive integers?

(1) z - x= 2 --> z = x + 2. If y = x+1, then the answer is YES, otherwise the answer is NO. Not sufficient.

(2) x < y < z. Clearly insufficient.

(1)+(2) We have that x < y < x + 2, thus y = x+1 (there is only one integer between x and x + 2). Sufficient.

Answer: C.
_________________

NEW TO MATH FORUM? PLEASE READ THIS: ALL YOU NEED FOR QUANT!!!

PLEASE READ AND FOLLOW: 11 Rules for Posting!!!

RESOURCES: [GMAT MATH BOOK]; 1. Triangles; 2. Polygons; 3. Coordinate Geometry; 4. Factorials; 5. Circles; 6. Number Theory; 7. Remainders; 8. Overlapping Sets; 9. PDF of Math Book; 10. Remainders; 11. GMAT Prep Software Analysis NEW!!!; 12. SEVEN SAMURAI OF 2012 (BEST DISCUSSIONS) NEW!!!; 12. Tricky questions from previous years. NEW!!!;

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?
25 extra-hard Quant Tests

Get the best GMAT Prep Resources with GMAT Club Premium Membership

Re: If x, y, and z are three integers, are they consecutive inte   [#permalink] 05 Jan 2014, 11:25
    Similar topics Author Replies Last post
Similar
Topics:
Experts publish their posts in the topic If x, y, and z are consecutive integers such that x > y > z vibhav 3 21 Jul 2013, 07:55
If x,y and z are three integers, are they consecutive GMATD11 4 09 Mar 2011, 23:31
1 x, y, and z are consecutive integers, and x < y < z. joyseychow 2 25 Jan 2010, 19:38
x , y , and z are integers. Are they consecutive? 1. y amitdgr 3 02 Oct 2008, 23:49
If x, y, and z are 3 positive consecutive integers such that rxs0005 3 23 Sep 2006, 04:50
Display posts from previous: Sort by

If x, y, and z are three integers, are they consecutive inte

  Question banks Downloads My Bookmarks Reviews Important topics  


cron

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

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®.