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

It is currently 20 Apr 2019, 08:01

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

If z is an integer greater than 1, is z even?

  new topic post reply Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
Senior Manager
Senior Manager
avatar
G
Joined: 18 Feb 2019
Posts: 281
Location: India
GMAT 1: 490 Q47 V13
GPA: 3.6
If z is an integer greater than 1, is z even?  [#permalink]

Show Tags

New post 23 Mar 2019, 04:57
1
00:00
A
B
C
D
E

Difficulty:

  45% (medium)

Question Stats:

65% (01:40) correct 35% (01:20) wrong based on 17 sessions

HideShow timer Statistics

If z is an integer greater than 1, is z even?

(1) 2z is not a factor of 8

(2) 3z/4 is a factor of 6
Manager
Manager
User avatar
B
Joined: 11 Feb 2013
Posts: 68
Location: Bangladesh
GMAT 1: 490 Q44 V15
GMAT 2: 690 Q47 V38
GPA: 3.05
WE: Analyst (Commercial Banking)
GMAT ToolKit User Reviews Badge
Re: If z is an integer greater than 1, is z even?  [#permalink]

Show Tags

New post 23 Mar 2019, 05:18
1
Statement 1: INSUFFICIENT.
2Z is NOT a FACTOR of 8
Or, Z is NOT a factor of 4.
So, Z can be 3, 5(Odd), 6 (Even).....

Statement 2: SUFFICIENT
3z/4 is a factor of 6
Or, 3z is a factor of 24
Or, z is a factor of 8
So, Z can be 2, 4 & 8 (those are the maximum possible factors of the main statement. Some of the factors may not work in main statement)

Here, applicable factors in statement 2 is 4 & 6 only (both positive)

Posted from my mobile device
Manager
Manager
User avatar
B
Joined: 11 Feb 2013
Posts: 68
Location: Bangladesh
GMAT 1: 490 Q44 V15
GMAT 2: 690 Q47 V38
GPA: 3.05
WE: Analyst (Commercial Banking)
GMAT ToolKit User Reviews Badge
Re: If z is an integer greater than 1, is z even?  [#permalink]

Show Tags

New post 23 Mar 2019, 05:26
Statement 2 can also be solved in the following ways.
What are the factors of 6?
=1,2,3 & 6.
So, 3z/4 is a factor of 6
Or, the value of 3z/4 can be
1 (z becomes fraction. Question says Z must be integer. Cross it out)

2 (z becomes fraction. Question says Z must be integer. Cross out)

3 (Z=4; EVEN)
6 (Z=8; EVEN)

Posted from my mobile device
Manager
Manager
User avatar
B
Joined: 11 Feb 2013
Posts: 68
Location: Bangladesh
GMAT 1: 490 Q44 V15
GMAT 2: 690 Q47 V38
GPA: 3.05
WE: Analyst (Commercial Banking)
GMAT ToolKit User Reviews Badge
Re: If z is an integer greater than 1, is z even?  [#permalink]

Show Tags

New post 23 Mar 2019, 05:31
In statement, it is easier to think about "Z is a factor of 4" than to work with "Z is NOT a factor of 4". In this situation, I find out factors of the number and then remove those & work with the remainings to find out "Z is NOT a factor of 4"

Posted from my mobile device
GMAT Club Bot
Re: If z is an integer greater than 1, is z even?   [#permalink] 23 Mar 2019, 05:31
Display posts from previous: Sort by

If z is an integer greater than 1, is z even?

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


Copyright

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®.