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

It is currently 15 Sep 2014, 20:56

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.

Events & Promotions

Events & Promotions in June
Open Detailed Calendar

What is the tens digit of positive integer x?

  Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
TAGS:
Manager
Manager
avatar
Joined: 17 Dec 2010
Posts: 99
Location: Australia
GMAT 1: 690 Q48 V37
GPA: 3.37
WE: Engineering (Consulting)
Followers: 1

Kudos [?]: 18 [0], given: 15

What is the tens digit of positive integer x? [#permalink] New post 29 Jul 2011, 19:54
00:00
A
B
C
D
E

Difficulty:

  35% (medium)

Question Stats:

68% (01:39) correct 32% (00:49) wrong based on 50 sessions
OG11 - Q148) What is the tens digit of positive integer x?

1) x divided by 100 has a remainder of 30
2) x divided by 110 has a remainder of 30
[Reveal] Spoiler: OA

_________________

Kudos always appreciated if my post helped you :)

Manager
Manager
avatar
Joined: 17 Dec 2010
Posts: 99
Location: Australia
GMAT 1: 690 Q48 V37
GPA: 3.37
WE: Engineering (Consulting)
Followers: 1

Kudos [?]: 18 [0], given: 15

Re: Contradicting Statement 1 & 2 - OG Question [#permalink] New post 29 Jul 2011, 19:56
False alarm - it's all 100% clear to me now

Even though the statements net different outcomes (i.e. "x" is a different number in each of the statements), the two statements aren't contradictory
_________________

Kudos always appreciated if my post helped you :)

Director
Director
User avatar
Status:
Joined: 24 Jul 2011
Posts: 556
GMAT 1: 780 Q51 V48
GRE 1: 1540 Q800 V740
Followers: 61

Kudos [?]: 280 [0], given: 11

Re: Contradicting Statement 1 & 2 - OG Question [#permalink] New post 30 Jul 2011, 01:26
Using statement (1), x will have a tens digit of 3 always. Sufficient.
Using statement (2), x can have a tens digit of 4 (as in 140) or 5(as in 250) and so on. Insufficient.

Therefore the answer is (A).
_________________

GyanOne | http://www.GyanOne.com | +91 9899831738

Get a free detailed MBA profile evaluation

Top MBA Rankings and MBA Admissions blog


Image

Manager
Manager
avatar
Joined: 30 Jul 2011
Posts: 118
Location: United States (NJ)
Concentration: General Management, Finance
GMAT 1: 520 Q40 V21
GPA: 2.95
Followers: 2

Kudos [?]: 17 [0], given: 24

GMAT ToolKit User
Re: Contradicting Statement 1 & 2 - OG Question [#permalink] New post 30 Jul 2011, 06:44
GyanOne wrote:
Using statement (1), x will have a tens digit of 3 always. Sufficient.
Using statement (2), x can have a tens digit of 4 (as in 140) or 5(as in 250) and so on. Insufficient.

Therefore the answer is (A).


Can you explain how you reached the conclusion for statement (2) that the tens digit will be 4 or 5?
1 KUDOS received
Director
Director
User avatar
Status:
Joined: 24 Jul 2011
Posts: 556
GMAT 1: 780 Q51 V48
GRE 1: 1540 Q800 V740
Followers: 61

Kudos [?]: 280 [1] , given: 11

Re: Contradicting Statement 1 & 2 - OG Question [#permalink] New post 31 Jul 2011, 03:47
1
This post received
KUDOS
restore,

If x=140, then x divided by 110 will leave a remainder of 30. In this case the tens digit of x is 4.
If x=250, then x divided by 110 will leave a remainder of 30. In this case the tens digit of x is 5.

I used these two as examples just to illustrate that two different answers are possible for the tens digit, and so statement (2) alone is insufficient. These two examples do not form an exhaustive set of examples for the tens digit in x as defined. In fact, if we list out all cases, x can have a tens digit of 0 to 9 (both inclusive), and still leave 30 as a remainder when divided by 110.

Hope this clarified.
_________________

GyanOne | http://www.GyanOne.com | +91 9899831738

Get a free detailed MBA profile evaluation

Top MBA Rankings and MBA Admissions blog


Image

Re: Contradicting Statement 1 & 2 - OG Question   [#permalink] 31 Jul 2011, 03:47
    Similar topics Author Replies Last post
Similar
Topics:
13 Experts publish their posts in the topic What is the tens digit of positive integer x ? Bunuel 9 08 Oct 2012, 01:51
2 Experts publish their posts in the topic What is the tens digit of positive integer x ? pratikbais 3 19 Mar 2012, 09:59
What is the tens digit of positive integer x ? (1) x divided crazy123 3 01 Aug 2007, 16:47
X is a 2-digit positive integer, what is the tens' digit of getzgetzu 3 06 May 2006, 03:27
What is the tens digit of positive integer x ? (1) x divided shahnandan 3 30 Dec 2005, 22:32
Display posts from previous: Sort by

What is the tens digit of positive integer x?

  Question banks Downloads My Bookmarks Reviews Important topics  


GMAT Club MBA Forum Home| About| Privacy Policy| Terms and Conditions| GMAT Club Rules| Contact| Sitemap

Powered by phpBB © phpBB Group and phpBB SEO

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®.