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

 It is currently 25 May 2016, 10:37

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 June
Open Detailed Calendar

If x > 1, what is the value of x? i) There are x unique

Author Message
TAGS:

Hide Tags

Manager
Joined: 22 Mar 2011
Posts: 67
Followers: 1

Kudos [?]: 5 [0], given: 10

If x > 1, what is the value of x? i) There are x unique [#permalink]

Show Tags

02 Jun 2011, 18:35
00:00

Difficulty:

45% (medium)

Question Stats:

38% (02:01) correct 63% (00:14) wrong based on 16 sessions

HideShow timer Statistics

If x > 1, what is the value of x?

i) There are x unique factors of x.
ii) The sum of x and any prime number larger than x is odd.

i) is understood

ii) The sum of x and any prime number larger than x is odd.

i.e if x > 1 then x has to be atleast 2 (the only prime number that is also even)

E + or - O = ODD

So only 2 will fulfill this criteria. If we take any prime number greater than 2 then O + or - O = Even.

So the answer should be each statement alone is sufficient.

[Reveal] Spoiler: OA
Math Forum Moderator
Joined: 20 Dec 2010
Posts: 2022
Followers: 154

Kudos [?]: 1435 [0], given: 376

Show Tags

02 Jun 2011, 19:03
melguy wrote:
If x > 1, what is the value of x?

i) There are x unique factors of x.
ii) The sum of x and any prime number larger than x is odd.

i) is understood

ii) The sum of x and any prime number larger than x is odd.

i.e if x > 1 then x has to be atleast 2 (the only prime number that is also even)

E + or - O = ODD

So only 2 will fulfill this criteria. If we take any prime number greater than 2 then O + or - O = Even.

So the answer should be each statement alone is sufficient.

St2:
x is not necessarily prime.
x is definitely even.
4+7=11(odd); x=4, Prime Number greater than x(4) is 7; 7+4=odd
6+7=13(odd); x=6, Prime Number greater than x(6) is 7; 6+7=odd
Not Sufficient.
_________________
Manager
Joined: 22 Mar 2011
Posts: 67
Followers: 1

Kudos [?]: 5 [0], given: 10

Show Tags

02 Jun 2011, 19:06
St2:
x is not necessarily prime.
x is definitely even.
4+7=11(odd); x=4, Prime Number greater than x(4) is 7; 7+4=odd
6+7=13(odd); x=6, Prime Number greater than x(6) is 7; 6+7=odd
Not Sufficient.[/quote]

duh! Thanks for pointing out the mistake! I am just too tired and burnt out exam in 24 days
Senior Manager
Joined: 24 Mar 2011
Posts: 457
Location: Texas
Followers: 5

Kudos [?]: 112 [0], given: 20

Show Tags

02 Jun 2011, 20:42
So as per statement, is x=2?
Math Forum Moderator
Joined: 20 Dec 2010
Posts: 2022
Followers: 154

Kudos [?]: 1435 [0], given: 376

Show Tags

03 Jun 2011, 01:59
agdimple333 wrote:
So as per statement, is x=2?

Yes, as the statement1.
_________________
Director
Joined: 01 Feb 2011
Posts: 758
Followers: 14

Kudos [?]: 93 [0], given: 42

Show Tags

03 Jun 2011, 17:47
1. Sufficient

as 2 is >1 and has 2 unique factors 1 and 2.

every other x >1 does not have x unique factors.

2. Not sufficient

x + prime greater than 1 is odd

as x >1

x ( x + odd = odd => x must be even)
2 + 3 is odd
4 + 5 is odd

Re: What is x?   [#permalink] 03 Jun 2011, 17:47
Similar topics Replies Last post
Similar
Topics:
1 If x is an integer and -2x + 1> 7, what is the value of x? 1 23 Sep 2015, 22:36
3 If x>1, what is the value of integer x? 1) There are x 5 10 Aug 2011, 18:45
2 If x > 1, what is the value of integer x? (1) There are x 6 01 Jul 2011, 12:39
6 If x > 1, what is the value of integer x? 7 18 Mar 2011, 14:07
7 If x>1, what is the value of integer x? 14 10 Mar 2011, 06:50
Display posts from previous: Sort by