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

It is currently 14 Aug 2018, 04:19

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

Set S contains N integers. Is S a set of distinct consecutive integers

  new topic post reply Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
TAGS:

Hide Tags

Senior Manager
Senior Manager
avatar
D
Joined: 06 Jan 2015
Posts: 434
Location: India
Concentration: Operations, Finance
GPA: 3.35
WE: Information Technology (Computer Software)
Set S contains N integers. Is S a set of distinct consecutive integers  [#permalink]

Show Tags

New post 17 Dec 2017, 02:44
00:00
A
B
C
D
E

Difficulty:

  65% (hard)

Question Stats:

38% (00:39) correct 62% (01:03) wrong based on 29 sessions

HideShow timer Statistics

Set S contains N integers. Is S a set of distinct consecutive integers?

(1) The range of S is N

(2) The range of S is less than N+1

Source: expertsglobal

_________________

आत्मनॊ मोक्षार्थम् जगद्धिताय च

Resource: GMATPrep RCs With Solution

PS Forum Moderator
avatar
D
Joined: 25 Feb 2013
Posts: 1198
Location: India
GPA: 3.82
GMAT ToolKit User Premium Member Reviews Badge
Set S contains N integers. Is S a set of distinct consecutive integers  [#permalink]

Show Tags

New post 17 Dec 2017, 04:18
NandishSS wrote:
Set S contains N integers. Is S a set of distinct consecutive integers?

(1) The range of S is N

(2) The range of S is less than N+1

Source: expertsglobal


Statement 1: if \(S\) is a set of distinct consecutive integers, then \(S ={a,a+1,a+2..........,a+(N-1)}\), where \(a\) is the first element of the set

Range of consecutive elements in set \(S =[a+(N-1)]-a=N-1\)

As per this statement \(N-1=N => -1=0\), which is not possible. Hence elements in set \(S\) are NOT consecutive. Sufficient

Statement 2: We know nothing about the elements in Set \(S\) and as explained in Statement 1, range of consecutive elements will be \(N-1\).

As per this statement range can be \(N\) or \(N-1\) or any other number. Insufficient

Option A

--------------------------------------------------------

Alternatively take few examples of consecutive set and test the statement. For eg. let S={1,2,3}, here N=3

Statement 1: Range of S = 3-1=2 but as per this statement range =3. hence S is not consecutive. Sufficient

Statement 2: implies Range<3+1, so range can be 3 or 2 or 1 etc. Insufficient
Math Expert
User avatar
V
Joined: 02 Sep 2009
Posts: 47898
Re: Set S contains N integers. Is S a set of distinct consecutive integers  [#permalink]

Show Tags

New post 17 Dec 2017, 05:24
NandishSS wrote:
Set S contains N integers. Is S a set of distinct consecutive integers?

(1) The range of S is N

(2) The range of S is less than N+1

Source: expertsglobal


Similar question to practice: https://gmatclub.com/forum/a-list-conta ... 65873.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

Math Expert
User avatar
V
Joined: 02 Aug 2009
Posts: 6504
Re: Set S contains N integers. Is S a set of distinct consecutive integers  [#permalink]

Show Tags

New post 17 Dec 2017, 05:45
NandishSS wrote:
Set S contains N integers. Is S a set of distinct consecutive integers?

(1) The range of S is N

(2) The range of S is less than N+1

Source: expertsglobal



Not a very good formatting of question by the source..
consecutive integers have to be distinct, so mere "Is S a set of consecutive integers?" should have been sufficient.
_________________

1) Absolute modulus : http://gmatclub.com/forum/absolute-modulus-a-better-understanding-210849.html#p1622372
2)Combination of similar and dissimilar things : http://gmatclub.com/forum/topic215915.html
3) effects of arithmetic operations : https://gmatclub.com/forum/effects-of-arithmetic-operations-on-fractions-269413.html


GMAT online Tutor

Re: Set S contains N integers. Is S a set of distinct consecutive integers &nbs [#permalink] 17 Dec 2017, 05:45
Display posts from previous: Sort by

Set S contains N integers. Is S a set of distinct consecutive integers

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

Events & Promotions

PREV
NEXT


GMAT Club MBA Forum Home| About| Terms and Conditions and Privacy Policy| 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®.