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

 It is currently 19 Jan 2019, 08:37

### 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

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

## Events & Promotions

###### Events & Promotions in January
PrevNext
SuMoTuWeThFrSa
303112345
6789101112
13141516171819
20212223242526
272829303112
Open Detailed Calendar
• ### FREE Quant Workshop by e-GMAT!

January 20, 2019

January 20, 2019

07:00 AM PST

07:00 AM PST

Get personalized insights on how to achieve your Target Quant Score.
• ### Free GMAT Strategy Webinar

January 19, 2019

January 19, 2019

07:00 AM PST

09:00 AM PST

Aiming to score 760+? Attend this FREE session to learn how to Define your GMAT Strategy, Create your Study Plan and Master the Core Skills to excel on the GMAT.

# Is the number x a multiple of 12?

Author Message
TAGS:

### Hide Tags

Intern
Joined: 04 Sep 2018
Posts: 1
Is the number x a multiple of 12?  [#permalink]

### Show Tags

22 Dec 2018, 19:13
00:00

Difficulty:

25% (medium)

Question Stats:

60% (00:28) correct 40% (00:27) wrong based on 55 sessions

### HideShow timer Statistics

Is the number x a multiple of 12?

1) Both 3 and 4 divide into x evenly.
2) Both 2 and 6 divide into x evenly.
Intern
Joined: 12 Dec 2018
Posts: 19
Location: India
Concentration: Finance, Operations
Schools: ISB '20
GPA: 3.48
WE: Information Technology (Computer Software)
Re: Is the number x a multiple of 12?  [#permalink]

### Show Tags

22 Dec 2018, 20:46
1
1. 3 and 4 are co primes to each other. Hence, x must be a multiple of 12. SUFFICIENT.

2. 2 and 6 are not co prime. For example, take 18. It is divisible by 2 as well as 6. So, INSUFFICIENT.

Posted from my mobile device
Senior PS Moderator
Joined: 26 Feb 2016
Posts: 3334
Location: India
GPA: 3.12
Re: Is the number x a multiple of 12?  [#permalink]

### Show Tags

23 Dec 2018, 00:21
MSFApplicant wrote:
Is the number x a multiple of 12?

1) Both 3 and 4 divide into x evenly.
2) Both 2 and 6 divide into x evenly.

If the number x is a multiple of 12, the number will be of form $$2^2 * 3 * x$$

1. Both $$3$$ and $$4(2^2)$$ divide the number evenly.
Now, the number has to be a multiple of 12 because at the
bare minimum the number will have $$2^2*3$$ or $$12$$ (Sufficient)

2. Both $$2$$ and $$6(2*3)$$ divide into x evenly.
If the number is 24, then it will be a multiple of 12. But, 18 which
is evenly divided by 2 and 6 is not a multiple of 12 (Insufficient)(Option B)
_________________

You've got what it takes, but it will take everything you've got

Intern
Joined: 30 Dec 2018
Posts: 1
Re: Is the number x a multiple of 12?  [#permalink]

### Show Tags

08 Jan 2019, 16:12
How about if x was 39?

39 is a multiple of 3
square root (39-3) = 6 which is not odd

thus both statements are not sufficient.

Consensus seems to be that C is the correct answer, so I'm confused why x=39 wouldn't validate answer to be E
Re: Is the number x a multiple of 12? &nbs [#permalink] 08 Jan 2019, 16:12
Display posts from previous: Sort by