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Ryerson (Ted Rogers) Thread Master Joined: 27 Sep 2015
Posts: 56
Location: Canada
GMAT 1: 410 Q33 V13 WE: Management Consulting (Computer Software)
What is the value of x−1?  [#permalink]

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Difficulty:   5% (low)

Question Stats: 97% (00:29) correct 3% (00:30) wrong based on 91 sessions

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Project DS Butler: Day 38: Data Sufficiency (DS76)

For DS butler Questions Click Here

What is the value of $$x−1$$?

(1) $$x+1=3$$
(2) $$x−1<3$$

_________________
Discipline does not mean control. Discipline means having the sense to do exactly what is needed.

Originally posted by RSOHAL on 20 Dec 2015, 14:43.
Last edited by gmatbusters on 13 Dec 2018, 06:37, edited 6 times in total.
Butler tag added
CEO  S
Joined: 20 Mar 2014
Posts: 2620
Concentration: Finance, Strategy
Schools: Kellogg '18 (M)
GMAT 1: 750 Q49 V44 GPA: 3.7
WE: Engineering (Aerospace and Defense)
Re: What is the value of x−1?  [#permalink]

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Rsohal wrote:
What is the value of $$x−1$$?

(1) $$x+1=3$$
(2) $$x−1<3$$

AD/BDCE
Statement 1:

$$x=3−1=2$$
ie $$2-1 =1$$ Sufficient

AD/BCE

Statement 2:

$$x−1<3$$
means
x could be 3
$$x−1=3−1=2$$
or
x could be 2
$$x−1=1−1=1$$

Hence Not Sufficient

AD/BCE

Answer A is correct.

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Ryerson (Ted Rogers) Thread Master Joined: 27 Sep 2015
Posts: 56
Location: Canada
GMAT 1: 410 Q33 V13 WE: Management Consulting (Computer Software)
Re: What is the value of x−1?  [#permalink]

### Show Tags

AD/BDCE
Statement 1:

$$x=3−1=2$$
ie $$2-1 =1$$ Sufficient

AD/BCE

Statement 2:

$$x−1<3$$
means
x could be 3
$$x−1=3−1=2$$
or
x could be 2
$$x−1=1−1=1$$

Hence Not Sufficient

AD/BCE

Answer A is correct.
_________________
Discipline does not mean control. Discipline means having the sense to do exactly what is needed.
Retired Moderator V
Joined: 27 Oct 2017
Posts: 1245
Location: India
Concentration: International Business, General Management
GPA: 3.64
WE: Business Development (Energy and Utilities)
Re: What is the value of x−1?  [#permalink]

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Project DS Butler: Day 38: Data Sufficiency (DS76)

For DS butler Questions Click Here

Bumping for DS Butler project
_________________
VP  D
Joined: 09 Mar 2016
Posts: 1257
Re: What is the value of x−1?  [#permalink]

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RSOHAL wrote:

Project DS Butler: Day 38: Data Sufficiency (DS76)

For DS butler Questions Click Here

What is the value of $$x−1$$?

(1) $$x+1=3$$
(2) $$x−1<3$$

(1) $$x+1=3$$

x = 2 sufficient

(2) $$x−1<3$$
x < 4 (x could be any number less than 4) insufficient

gmatbusters is my reasoning correct ? Retired Moderator V
Joined: 27 Oct 2017
Posts: 1245
Location: India
Concentration: International Business, General Management
GPA: 3.64
WE: Business Development (Energy and Utilities)
Re: What is the value of x−1?  [#permalink]

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1
Hi dave13

Your reasoning is perfect dave13 wrote:
RSOHAL wrote:

Project DS Butler: Day 38: Data Sufficiency (DS76)

For DS butler Questions Click Here

What is the value of $$x−1$$?

(1) $$x+1=3$$
(2) $$x−1<3$$

(1) $$x+1=3$$

x = 2 sufficient

(2) $$x−1<3$$
x < 4 (x could be any number less than 4) insufficient

gmatbusters is my reasoning correct ? _________________ Re: What is the value of x−1?   [#permalink] 23 Dec 2018, 04:30
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