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

It is currently 13 Oct 2019, 20:51

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

x is a positive integer less than 20. What is the value of x?

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

Hide Tags

Find Similar Topics 
Retired Moderator
avatar
B
Status: On a mountain of skulls, in the castle of pain, I sit on a throne of blood.
Joined: 30 Jul 2013
Posts: 300
GMAT ToolKit User Reviews Badge
x is a positive integer less than 20. What is the value of x?  [#permalink]

Show Tags

New post Updated on: 03 Sep 2014, 18:09
1
9
00:00
A
B
C
D
E

Difficulty:

  85% (hard)

Question Stats:

45% (01:45) correct 56% (01:28) wrong based on 200 sessions

HideShow timer Statistics

x is a positive integer less than 20. What is the value of x?

(1) x is the sum of two consecutive integers.
(2) x is the sum of five consecutive integers.

Originally posted by AmoyV on 03 Sep 2014, 16:26.
Last edited by Bunuel on 03 Sep 2014, 18:09, edited 1 time in total.
Edited the question
Math Expert
User avatar
V
Joined: 02 Sep 2009
Posts: 58335
Re: x is a positive integer less than 20. What is the value of x?  [#permalink]

Show Tags

New post 03 Sep 2014, 18:15
x is a positive integer less than 20. What is the value of x?

(1) x is the sum of two consecutive integers. Well, this one is clearly insufficient. For example, x could be 0 + 1 = 1 or 1 + 2 = 3. Not sufficient.

(2) x is the sum of five consecutive integers. Also, insufficient. For example, x could be 0 + 1 + 2 + 3 + 4 = 10 or 1 + 2 + 3 + 4 +5 = 15. Not sufficient.

(1)+(2) The same here: x could be 1 + 2 + 3 + 4 + 5 = 7 + 8 = 15 or -1 + 0 + 1 + 2 + 3 = 2 + 3 = 5. Not sufficient.

Answer: E.
_________________
Senior Manager
Senior Manager
avatar
P
Joined: 27 Aug 2014
Posts: 336
Location: Netherlands
Concentration: Finance, Strategy
Schools: LBS '22, ISB '21
GPA: 3.9
WE: Analyst (Energy and Utilities)
Re: x is a positive integer less than 20. What is the value of x?  [#permalink]

Show Tags

New post 08 Dec 2014, 14:38
small question:
does'nt statement 1 and 2 contradict each other in this question? isit possible in Gmat?
Math Expert
User avatar
V
Joined: 02 Sep 2009
Posts: 58335
Re: x is a positive integer less than 20. What is the value of x?  [#permalink]

Show Tags

New post 08 Dec 2014, 14:48
1
santorasantu wrote:
small question:
does'nt statement 1 and 2 contradict each other in this question? isit possible in Gmat?


On the GMAT, two data sufficiency statements always provide TRUE information and these statements never contradict each other.

But , for this question, the statements, do not contradict. x could be 15, so the sum of 5 consecutive integers (1 + 2 + 3 + 4 + 5 = 15) and the sum of 2 consecutive integers (7 + 8 = 15). It can also be 5, again 5 is the the sum of 5 consecutive integers (-1 + 0 + 1 + 2 + 3 = 5) as well as the sum of 2 consecutive integers (2 + 3 = 5).


Hope it's clear.
_________________
Manager
Manager
User avatar
Joined: 14 Oct 2014
Posts: 66
Location: United States
GMAT 1: 500 Q36 V23
Re: x is a positive integer less than 20. What is the value of x?  [#permalink]

Show Tags

New post 08 Dec 2014, 15:11
1
Does the statement x is a positive integer mean that x can be 0?
Math Expert
User avatar
V
Joined: 02 Sep 2009
Posts: 58335
x is a positive integer less than 20. What is the value of x?  [#permalink]

Show Tags

New post 08 Dec 2014, 15:22
Senior Manager
Senior Manager
avatar
P
Joined: 27 Aug 2014
Posts: 336
Location: Netherlands
Concentration: Finance, Strategy
Schools: LBS '22, ISB '21
GPA: 3.9
WE: Analyst (Energy and Utilities)
Re: x is a positive integer less than 20. What is the value of x?  [#permalink]

Show Tags

New post 09 Dec 2014, 05:19
Bunuel wrote:
santorasantu wrote:
small question:
does'nt statement 1 and 2 contradict each other in this question? isit possible in Gmat?


On the GMAT, two data sufficiency statements always provide TRUE information and these statements never contradict each other.

But , for this question, the statements, do not contradict. x could be 15, so the sum of 5 consecutive integers (1 + 2 + 3 + 4 + 5 = 15) and the sum of 2 consecutive integers (7 + 8 = 15). It can also be 5, again 5 is the the sum of 5 consecutive integers (-1 + 0 + 1 + 2 + 3 = 5) as well as the sum of 2 consecutive integers (2 + 3 = 5).


Hope it's clear.



Thanks a lot for the clarification and also the explanation :idea:
Manager
Manager
avatar
B
Joined: 28 Jun 2016
Posts: 215
Location: Canada
Concentration: Operations, Entrepreneurship
Re: x is a positive integer less than 20. What is the value of x?  [#permalink]

Show Tags

New post 29 Oct 2016, 14:16
Statement 1:

x can be 1,3,5,7,9,11,13,15,17,19

Insufficient

Statement 2:

x can be 5, 10, 15

Insufficient

Statement 1&2:

x can be 5 or 15.

Insufficient

E


Sent from my iPhone using GMAT Club Forum mobile app
Senior Manager
Senior Manager
avatar
S
Joined: 15 Jan 2017
Posts: 341
Re: x is a positive integer less than 20. What is the value of x?  [#permalink]

Show Tags

New post 26 Oct 2017, 01:36
St 1: x is the sum of two consecutive integers --> can be a+2, a+3 or a, a+1. So x will change, as we don't know the order of the consecutive numbers

St 2: X is sum of 5 consecutive integers --> can be a+5, a+6, a+7, a+8, a+9 or a+12, a+13..a+17. Again x will change. we don't know the order of consecutive numbers

1) 2) => no clarity on the value of consecutive numbers. hence E.
Non-Human User
User avatar
Joined: 09 Sep 2013
Posts: 13080
Re: x is a positive integer less than 20. What is the value of x?  [#permalink]

Show Tags

New post 05 Feb 2019, 07:50
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 Club Bot
Re: x is a positive integer less than 20. What is the value of x?   [#permalink] 05 Feb 2019, 07:50
Display posts from previous: Sort by

x is a positive integer less than 20. What is the value of x?

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





Powered by phpBB © phpBB Group | Emoji artwork provided by EmojiOne