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

It is currently 16 Aug 2018, 16:48

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

Is non-negative integer x an even integer?

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

Hide Tags

Math Expert
User avatar
V
Joined: 02 Aug 2009
Posts: 6535
Is non-negative integer x an even integer?  [#permalink]

Show Tags

New post 12 Jan 2017, 08:35
00:00
A
B
C
D
E

Difficulty:

  55% (hard)

Question Stats:

54% (01:08) correct 46% (01:10) wrong based on 48 sessions

HideShow timer Statistics

Is non-negative integer x an even integer?
1)x<k, where k is the number of digits in x.
2)k=1

Self made

_________________

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

Intern
Intern
avatar
B
Joined: 02 Oct 2016
Posts: 35
Schools: HEC Dec '17
Is non-negative integer x an even integer?  [#permalink]

Show Tags

New post 12 Jan 2017, 08:43
1
chetan2u wrote:
Is non-negative integer x an even integer?
1)x<k, where k is the number of digits in x.
2)k=1

Self made


Given: x>= 0 and x is an integer.
From 1) If k is the number of digits in x and x < k, k must be equal to 1
(Eg: If k = 2, then x is a 2 digit number => no 2 digit number can be less than 2)

=> k = 1 and x = 0
=> 0 is even. Answer is YES.
Sufficient.

From 2) k = 1
We don't know the relationship between x and k. Hence, not sufficient.

Answer is A.
Math Expert
User avatar
V
Joined: 02 Sep 2009
Posts: 47946
Re: Is non-negative integer x an even integer?  [#permalink]

Show Tags

New post 12 Jan 2017, 09:33
Vaidya wrote:
chetan2u wrote:
Is non-negative integer x an even integer?
1)x<k, where k is the number of digits in x.
2)k=1

Self made


Given: x>= 0 and x is an integer.
From 1) If k is the number of digits in x and x < k, k must be equal to 1
(Eg: If k = 2, then x is a 2 digit number => no 2 digit number can be less than 2)

=> k = 1 and x = 0
=> 0 is even. Answer is YES.
Sufficient.

From 2) k = 1
We don't know the relationship between x and k. Hence, not sufficient.

Answer is A.


Thank you for the reply Vaidya. Just one note, it's not necessary to put your solution in spoiler.
_________________

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

Intern
Intern
avatar
B
Joined: 02 Oct 2016
Posts: 35
Schools: HEC Dec '17
Re: Is non-negative integer x an even integer?  [#permalink]

Show Tags

New post 12 Jan 2017, 09:42
Bunuel wrote:
Thank you for the reply Vaidya. Just one note, it's not necessary to put your solution in spoiler.


Hi Bunuel, noted. I wasn't sure whether there's a rule about using spoilers and also assumed that people might be interested in solving the question themselves.
Math Expert
User avatar
V
Joined: 02 Sep 2009
Posts: 47946
Re: Is non-negative integer x an even integer?  [#permalink]

Show Tags

New post 12 Jan 2017, 09:49
Vaidya wrote:
Bunuel wrote:
Thank you for the reply Vaidya. Just one note, it's not necessary to put your solution in spoiler.


Hi Bunuel, noted. I wasn't sure whether there's a rule about using spoilers and also assumed that people might be interested in solving the question themselves.


Those who want to solve a question themselves can look on the first post only and usually don't scroll down to the replies.
_________________

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

Non-Human User
User avatar
Joined: 09 Sep 2013
Posts: 7728
Premium Member
Re: Is non-negative integer x an even integer?  [#permalink]

Show Tags

New post 12 Jul 2018, 08:40
Hello from the GMAT Club BumpBot!

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.
_________________

GMAT Books | GMAT Club Tests | Best Prices on GMAT Courses | GMAT Mobile App | Math Resources | Verbal Resources

Re: Is non-negative integer x an even integer? &nbs [#permalink] 12 Jul 2018, 08:40
Display posts from previous: Sort by

Is non-negative integer x an even integer?

  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®.