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

It is currently 14 Oct 2019, 16:01

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

What is least possible value of |23 - 7y| is (A)0 (B)1 (C)2 (D)5 (E)9

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

Hide Tags

Find Similar Topics 
Current Student
User avatar
D
Joined: 12 Aug 2015
Posts: 2572
Schools: Boston U '20 (M)
GRE 1: Q169 V154
GMAT ToolKit User
What is least possible value of |23 - 7y| is (A)0 (B)1 (C)2 (D)5 (E)9  [#permalink]

Show Tags

New post 04 Nov 2016, 08:33
1
10
00:00
A
B
C
D
E

Difficulty:

  45% (medium)

Question Stats:

46% (00:45) correct 54% (00:41) wrong based on 474 sessions

HideShow timer Statistics

Most Helpful Expert Reply
GMAT Club Legend
GMAT Club Legend
User avatar
V
Joined: 12 Sep 2015
Posts: 4000
Location: Canada
Re: What is least possible value of |23 - 7y| is (A)0 (B)1 (C)2 (D)5 (E)9  [#permalink]

Show Tags

New post 04 Nov 2016, 10:43
3
Top Contributor
2
stonecold wrote:
What is least possible value of |23 - 7y| is

(A)0
(B)1
(C)2
(D)5
(E)9


The mistake that some people will make is assuming that y is an integer. These people will incorrectly choose answer choice C.

Since y can be ANY number, we can minimize the value of |23 - 7y| by setting 23 - y equal to zero
If 23 - 7y = 0, then 23 = 7y, which means y = 23/7
In other words, when y = 23/7, we find that |23 - 7y| = 0

Answer:
_________________
Test confidently with gmatprepnow.com
Image
General Discussion
Math Expert
User avatar
V
Joined: 02 Sep 2009
Posts: 58320
Re: What is least possible value of |23 - 7y| is (A)0 (B)1 (C)2 (D)5 (E)9  [#permalink]

Show Tags

New post 04 Nov 2016, 08:36
1
Current Student
User avatar
D
Joined: 12 Aug 2015
Posts: 2572
Schools: Boston U '20 (M)
GRE 1: Q169 V154
GMAT ToolKit User
What is least possible value of |23 - 7y| is (A)0 (B)1 (C)2 (D)5 (E)9  [#permalink]

Show Tags

New post 04 Nov 2016, 10:53
GMATPrepNow wrote:
stonecold wrote:
What is least possible value of |23 - 7y| is

(A)0
(B)1
(C)2
(D)5
(E)9


The mistake that some people will make is assuming that y is an integer. These people will incorrectly choose answer choice C.

Since y can be ANY number, we can minimize the value of |23 - 7y| by setting 23 - y equal to zero
If 23 - 7y = 0, then 23 = 7y, which means y = 23/7
In other words, when y = 23/7, we find that |23 - 7y| = 0

Answer:



Hi Brent.!!
Can you share you inputs on this one => if-x-is-divisible-by-2-14-and-11-which-of-the-following-must-be-the-228248.html
_________________
GMAT Club Legend
GMAT Club Legend
User avatar
V
Joined: 12 Sep 2015
Posts: 4000
Location: Canada
Re: What is least possible value of |23 - 7y| is (A)0 (B)1 (C)2 (D)5 (E)9  [#permalink]

Show Tags

New post 04 Nov 2016, 11:41
Top Contributor
stonecold wrote:


I just added my response to that thread, but you're not going to like my answer :(

Cheers,
Brent - now with 25% more letters!!
_________________
Test confidently with gmatprepnow.com
Image
Intern
Intern
avatar
B
Joined: 06 May 2014
Posts: 2
Concentration: Strategy, Marketing
GMAT 1: 550 Q35 V49
GPA: 3.25
Re: What is least possible value of |23 - 7y| is (A)0 (B)1 (C)2 (D)5 (E)9  [#permalink]

Show Tags

New post 07 Nov 2016, 10:00
Hi Experts,

What does it mean by "least possible value of |23 - 7y|"?
As I understood, the question is asking which can produce closest distance from 0.
If we pick 0 then the distance from 0 will be +-23.
However, picking 2 produce +-9. Isn't it closer than +-23.
Please help me correct my mistake.
Thanks in advance.
Target Test Prep Representative
User avatar
D
Status: Founder & CEO
Affiliations: Target Test Prep
Joined: 14 Oct 2015
Posts: 8043
Location: United States (CA)
Re: What is least possible value of |23 - 7y| is (A)0 (B)1 (C)2 (D)5 (E)9  [#permalink]

Show Tags

New post 07 Nov 2016, 11:52
stonecold wrote:
What is least possible value of |23 - 7y| is

(A)0
(B)1
(C)2
(D)5
(E)9


The smallest possible value of the absolute value of any linear expression is 0. So the answer is 0. As Brent said, be sure to not fall for the trap of thinking that y must be an integer.

Answer: A
_________________

Scott Woodbury-Stewart

Founder and CEO

Scott@TargetTestPrep.com
TTP - Target Test Prep Logo
122 Reviews

5-star rated online GMAT quant
self study course

See why Target Test Prep is the top rated GMAT quant course on GMAT Club. Read Our Reviews

If you find one of my posts helpful, please take a moment to click on the "Kudos" button.

Current Student
User avatar
B
Status: DONE!
Joined: 05 Sep 2016
Posts: 358
Re: What is least possible value of |23 - 7y| is (A)0 (B)1 (C)2 (D)5 (E)9  [#permalink]

Show Tags

New post 09 Nov 2016, 19:26
Question doesn't say anything about y strictly being an integer. Therefore, if y=23/7, we'll get 23-23=0

A
Intern
Intern
avatar
B
Joined: 03 Apr 2016
Posts: 16
Re: What is least possible value of |23 - 7y| is (A)0 (B)1 (C)2 (D)5 (E)9  [#permalink]

Show Tags

New post 20 Feb 2017, 14:20
Bunuel wrote:
stonecold wrote:
What is least possible value of |23 - 7y| is

(A)0
(B)1
(C)2
(D)5
(E)9


The absolute value cannot be negative but it can be 0, so the least value of |something| is 0.

Answer: A.


So then if the question is rephrased, such that y is an integer, does C becomes that ans?
Math Expert
User avatar
V
Joined: 02 Sep 2009
Posts: 58320
Re: What is least possible value of |23 - 7y| is (A)0 (B)1 (C)2 (D)5 (E)9  [#permalink]

Show Tags

New post 21 Feb 2017, 00:03
alados14 wrote:
Bunuel wrote:
stonecold wrote:
What is least possible value of |23 - 7y| is

(A)0
(B)1
(C)2
(D)5
(E)9


The absolute value cannot be negative but it can be 0, so the least value of |something| is 0.

Answer: A.


So then if the question is rephrased, such that y is an integer, does C becomes that ans?


Yes. The least value of |23 - 7y| when y is an integer is 2, for y = 3.

Here is a question with that constraint: https://gmatclub.com/forum/if-y-is-an-i ... 39867.html

Hope it helps.
_________________
Non-Human User
User avatar
Joined: 09 Sep 2013
Posts: 13144
Re: What is least possible value of |23 - 7y| is (A)0 (B)1 (C)2 (D)5 (E)9  [#permalink]

Show Tags

New post 30 Oct 2018, 04:41
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: What is least possible value of |23 - 7y| is (A)0 (B)1 (C)2 (D)5 (E)9   [#permalink] 30 Oct 2018, 04:41
Display posts from previous: Sort by

What is least possible value of |23 - 7y| is (A)0 (B)1 (C)2 (D)5 (E)9

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





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