NEW HERE? LEARN MORE
closeclose
Last visit was: 25 Apr 2024, 16:09 It is currently 25 Apr 2024, 16:09
Decision Tracker
My Rewards
New posts
New comers' posts

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.
Go to My Error Log Learn more
Close
Request Expert Reply
Confirm Cancel

If |b – 1| = 3, what is the value of b?

SORT BY:
Date
Kudos
Tags:
Find Similar Topics 
Show Tags
Hide Tags
User avatar
L
Bunuel
Math Expert
Joined: 02 Sep 2009
Posts: 92915
Own Kudos [?]: 619022 [14]
Given Kudos: 81595
Send PM
CAT Tests Forum Quiz Mode
If |b – 1| = 3, what is the value of b? [#permalink] New post   06 Dec 2016, 07:03
3
Kudos
11
Bookmarks
Expert Reply
00:00
A
B
C
D
E

Difficulty:

5% (low)

Question Stats:

77% (00:41) correct 23% (00:49) wrong based on 359 sessions
Hide Show timer Statistics
If |b – 1| = 3, what is the value of b?

(1) b is divisible by 2
(2) b is divisible by 4
ShowHide Answer
Official Answer
B
User avatar
B
yezz
Retired Moderator
Joined: 05 Jul 2006
Posts: 849
Own Kudos [?]: 1562 [3]
Given Kudos: 49
Send PM
GMAT ToolKit User
Re: If |b – 1| = 3, what is the value of b? [#permalink] New post   07 Dec 2016, 09:15
1
Kudos
2
Bookmarks
Bunuel wrote:
If |b – 1| = 3, what is the value of b?

(1) b is divisible by 2
(2) b is divisible by 4


FROM STEM

b= 4 when b>1 or b = -2 when b<1

from one

both -2 and 4 are divisible by 2 ... insuff

from 2

b is divisible by 4 only when b= 4 that it is devisable by 4 .. suff

B
User avatar
L
Abhishek009
Board of Directors
Joined: 11 Jun 2011
Status:QA & VA Forum Moderator
Posts: 6072
Own Kudos [?]: 4689 [2]
Given Kudos: 463
Location: India
GPA: 3.5
WE:Business Development (Commercial Banking)
Send PM
GMAT ToolKit User
Re: If |b – 1| = 3, what is the value of b? [#permalink] New post   07 Dec 2016, 11:39
2
Kudos
Bunuel wrote:
If |b – 1| = 3, what is the value of b?

(1) b is divisible by 2
(2) b is divisible by 4


FROM STATEMENT - I ( INSUFFICIENT )

If b = -2 ; |b – 1| = 3
If b = 4 ; |b – 1| = 3

Thus, we do not have any unique value of b


FROM STATEMENT - II ( SUFFICIENT )

If b = 4 ; |b – 1| = 3

There is only one possible value, ie, b = 4


Thus, Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient to answer the question asked, answer will be (B)
User avatar
S
kanusha
Manager
Manager
Joined: 25 Mar 2013
Posts: 166
Own Kudos [?]: 130 [0]
Given Kudos: 101
Location: United States
Concentration: Entrepreneurship, Marketing
Schools: Yale '17 HBS '17 Stanford '17
GPA: 3.5
Send PM
GMAT ToolKit User Reviews Badge
If |b – 1| = 3, what is the value of b? [#permalink] New post   23 Jan 2017, 09:18
Abhishek009 wrote:
Bunuel wrote:
If |b – 1| = 3, what is the value of b?

(1) b is divisible by 2
(2) b is divisible by 4


FROM STATEMENT - I ( INSUFFICIENT )

If b = -2 ; |b – 1| = 3
If b = 4 ; |b – 1| = 3

Thus, we do not have any unique value of b


FROM STATEMENT - II ( SUFFICIENT )

If b = 4 ; |b – 1| = 3

There is only one possible value, ie, b = 4


Thus, Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient to answer the question asked, answer will be (B)


My solution :
Case 1: b-1 =3 ; b = 4
Case 2: -(b-1) = -b+1 = 3 ; b = -2
Statement 1:
b/2
4/2 Yes
-2/2 Yes
Statement 2:
b/4
4/4 Yes
-2/4 NO
So, I chose A
Abhishek can you pls explain what's wrong in my steps?
Am I wrong as b only need one value?
Thanks
User avatar
S
Nunuboy1994
Director
Director
Joined: 12 Nov 2016
Posts: 569
Own Kudos [?]: 118 [0]
Given Kudos: 167
Location: United States
Schools: Yale '18
GMAT 1: 650 Q43 V37
GRE 1: Q157 V158
GPA: 2.66
Send PM
Re: If |b – 1| = 3, what is the value of b? [#permalink] New post   01 Sep 2017, 14:46
Bunuel wrote:
If |b – 1| = 3, what is the value of b?

(1) b is divisible by 2
(2) b is divisible by 4



2 ways to do absolute value

Pos

b- 1 =3
b= 4

Neg

-l b-1l =3
-b +1 =3
-b =2
b= -2

A
User avatar
S
_shashank_shekhar_
Intern
Intern
Joined: 05 Jan 2017
Posts: 31
Own Kudos [?]: 50 [1]
Given Kudos: 17
Send PM
GMAT ToolKit User
Re: If |b – 1| = 3, what is the value of b? [#permalink] New post   28 Oct 2018, 12:41
If |b – 1| = 3, what is the value of b?

(1) b is divisible by 2
(2) b is divisible by 4

Sol-
|b – 1| = 3
=> b=4 or b=-2
(1) says b is divisible by 2
4 and -2 both div by 2. hence not suff

(2) says b is divisible by 4
sufficient as 4 is div by 4

Hence (B)
User avatar
bumpbot
Non-Human User
Joined: 09 Sep 2013
Posts: 32679
Own Kudos [?]: 822 [0]
Given Kudos: 0
Send PM
Re: If |b 1| = 3, what is the value of b? [#permalink] New post   07 Sep 2023, 02:34
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
gmatclubot
Re: If |b 1| = 3, what is the value of b? [#permalink]
07 Sep 2023, 02:34
Moderator:
Bunuel
Math Expert
92915 posts

Powered by phpBB © phpBB Group | Emoji artwork provided by EmojiOne
Main navigation
GMAT Resources
Partners
MBA Resources
www.gmac.com|www.mba.com | | GMAT Club Rules | Terms and Conditions