NEW HERE? LEARN MORE
closeclose
Last visit was: 23 Apr 2024, 20:46 It is currently 23 Apr 2024, 20:46
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 (1 – 1.25)N = 1, then N =

SORT BY:
Date
Kudos
Tags:
Difficulty: Sub 505 Levelx   Algebrax                           
Find Similar Topics 
Show Tags
Hide Tags
User avatar
L
Bunuel
Math Expert
Joined: 02 Sep 2009
Posts: 92883
Own Kudos [?]: 618618 [23]
Given Kudos: 81563
Send PM
CAT Tests Forum Quiz Mode
If (1 – 1.25)N = 1, then N = [#permalink] New post   14 Oct 2015, 21:28
7
Kudos
16
Bookmarks
Expert Reply
00:00
A
B
C
D
E

Difficulty:

5% (low)

Question Stats:

86% (00:35) correct 14% (00:35) wrong based on 2737 sessions
Hide Show timer Statistics
If (1 – 1.25)N = 1, then N =

(A) −400
(B) −140
(C) −4
(D) 4
(E) 400

Kudos for a correct solution.
ShowHide Answer
Official Answer
C
Most Helpful Reply
User avatar
D
avigutman
Tutor
Joined: 17 Jul 2019
Posts: 1304
Own Kudos [?]: 2285 [0]
Given Kudos: 66
Location: Canada
Schools: NYU Stern (WA)
GMAT 1: 780 Q51 V45
GMAT 2: 780 Q50 V47
GMAT 3: 770 Q50 V45
Send PM
Re: If (1 – 1.25)N = 1, then N = [#permalink] New post   08 Nov 2020, 17:31
Expert Reply
Video solution from Quant Reasoning:
General Discussion
User avatar
asethi
Manager
Manager
Joined: 08 Sep 2015
Status:tough ... ? Naaahhh !!!!
Posts: 58
Own Kudos [?]: 37 [4]
Given Kudos: 6
Location: India
Concentration: Marketing, Strategy
WE:Marketing (Computer Hardware)
Send PM
GMAT ToolKit User
Re: If (1 – 1.25)N = 1, then N = [#permalink] New post   14 Oct 2015, 21:30
4
Kudos
n=1/-0.25, so n=-4

Ans: c
User avatar
L
BrentGMATPrepNow
GMAT Club Legend
GMAT Club Legend
Joined: 12 Sep 2015
Posts: 6821
Own Kudos [?]: 29894 [4]
Given Kudos: 799
Location: Canada
Send PM
Re: If (1 – 1.25)N = 1, then N = [#permalink] New post   14 Oct 2015, 21:42
4
Kudos
Expert Reply
Bunuel wrote:
If (1 – 1.25)N = 1, then N =

(A) −400
(B) −140
(C) −4
(D) 4
(E) 400

Kudos for a correct solution.

(1 – 1.25)N = 1
Simplify to get: -0.25N = 1
Rewrite as (-1/4)N = 1
Multiply both sides by -4 to get: N = -4

Answer: C

Cheers,
Brent
avatar
saiesta
Manager
Manager
Joined: 03 Jan 2015
Posts: 65
Own Kudos [?]: 301 [1]
Given Kudos: 146
Send PM
GMAT ToolKit User
Re: If (1 – 1.25)N = 1, then N = [#permalink] New post   26 Apr 2016, 14:11
1
Kudos
Bunuel wrote:
If (1 – 1.25)N = 1, then N =

(A) −400
(B) −140
(C) −4
(D) 4
(E) 400

Kudos for a correct solution.

\((1 – 1.25)N = 1\) --> \((-0.25)N = 1\) --> \(N = \frac{1}{-0.25}\) --> \(N = \frac{1}{-1/4}\) --> \(N = -4\)
Answer choice C.
User avatar
P
JeffTargetTestPrep
Target Test Prep Representative
Joined: 04 Mar 2011
Status:Head GMAT Instructor
Affiliations: Target Test Prep
Posts: 3043
Own Kudos [?]: 6271 [1]
Given Kudos: 1646
Send PM
Re: If (1 – 1.25)N = 1, then N = [#permalink] New post   28 Apr 2016, 07:02
1
Kudos
Expert Reply
Bunuel wrote:
If (1 – 1.25)N = 1, then N =

(A) −400
(B) −140
(C) −4
(D) 4
(E) 400

Kudos for a correct solution.


We need to determine the value of N in the equation (1 – 1.25)N = 1.

(1 – 1.25)N = 1

(-0.25)N = 1

(-1/4)N = 1

N = -4

Answer: C
User avatar
L
Abhishek009
Board of Directors
Joined: 11 Jun 2011
Status:QA & VA Forum Moderator
Posts: 6072
Own Kudos [?]: 4689 [0]
Given Kudos: 463
Location: India
GPA: 3.5
WE:Business Development (Commercial Banking)
Send PM
GMAT ToolKit User
Re: If (1 – 1.25)N = 1, then N = [#permalink] New post   28 Apr 2016, 11:29
Bunuel wrote:
If (1 – 1.25)N = 1, then N =

(A) −400
(B) −140
(C) −4
(D) 4
(E) 400

Kudos for a correct solution.


(1 – 1.25)N = 1

Or (\(1\) – \(\frac{5}{4}\))N = \(1\)

Or \(\frac{-1}{4}\)N = \(1\)

So, N = - 4

Hence answer will definitely be (C)
User avatar
bimalr9
Intern
Intern
Joined: 20 Mar 2015
Posts: 40
Own Kudos [?]: 261 [1]
Given Kudos: 9
Send PM
GMAT ToolKit User
Re: If (1 – 1.25)N = 1, then N = [#permalink] New post   23 Jun 2016, 03:01
1
Kudos
Bunuel wrote:
If (1 – 1.25)N = 1, then N =

(A) −400
(B) −140
(C) −4
(D) 4
(E) 400

Kudos for a correct solution.


\(1 -\) \(\frac{125}{100}\) \(*N\) = 1

\(-\)\(\frac{25}{100}\) \(*N\) = 1

\(N =\) \(-\)\(\frac{100}{25}\)
\(N =\) \(- 4\)
avatar
B
bdh009
Intern
Intern
Joined: 12 Jan 2017
Posts: 5
Own Kudos [?]: 3 [0]
Given Kudos: 0
Location: United States
Schools: Tepper '20 (M) Foster '20 (A)
GMAT 1: 670 Q44 V38
GPA: 3.26
WE:Marketing (Consumer Products)
Send PM
Re: If (1 – 1.25)N = 1, then N = [#permalink] New post   09 Apr 2017, 09:54
1-1.25 = -.25
n/-4 = 1
cross multiply and you get n = -4
C
User avatar
D
KSBGC
VP
VP
Joined: 31 Oct 2013
Posts: 1260
Own Kudos [?]: 1153 [0]
Given Kudos: 635
Concentration: Accounting, Finance
GPA: 3.68
WE:Analyst (Accounting)
Send PM
Re: If (1 – 1.25)N = 1, then N = [#permalink] New post   10 Jun 2018, 11:39
Bunuel wrote:
If (1 – 1.25)N = 1, then N =

(A) −400
(B) −140
(C) −4
(D) 4
(E) 400

Kudos for a correct solution.



As we are deducting 1.25 from 1, ultimate result will be negative. Eliminate D and E. -0..25 is equivalent to 1/4. so ultimate result will be -4.

Thus the best answer is Option C.
User avatar
G
LMP
Manager
Manager
Joined: 29 Jun 2018
Posts: 51
Own Kudos [?]: 207 [0]
Given Kudos: 62
Location: India
Schools: Johnson '20 HEC Montreal '21
GPA: 4
Send PM
GMAT ToolKit User
Re: If (1 – 1.25)N = 1, then N = [#permalink] New post   23 Jun 2019, 06:26
Bunuel wrote:
If (1 – 1.25)N = 1, then N =

(A) −400
(B) −140
(C) −4
(D) 4
(E) 400

Kudos for a correct solution.

In this case we have 1-(1.25 is 5/4), so that's going to be -1/4.

the correct answer choice is C.
User avatar
L
Kinshook
GMAT Club Legend
GMAT Club Legend
Joined: 03 Jun 2019
Posts: 5342
Own Kudos [?]: 3964 [0]
Given Kudos: 160
Location: India
Schools: HBS '22 CBS '22 Wharton '22
GMAT 1: 690 Q50 V34
WE:Engineering (Transportation)
Send PM
Reviews Badge
Re: If (1 – 1.25)N = 1, then N = [#permalink] New post   15 Sep 2019, 05:33
Bunuel wrote:
If (1 – 1.25)N = 1, then N =

(A) −400
(B) −140
(C) −4
(D) 4
(E) 400

Kudos for a correct solution.


-.25N=1
N=-4

IMO C

Posted from my mobile device
User avatar
L
GMATinsight
GMAT Club Legend
GMAT Club Legend
Joined: 08 Jul 2010
Status:GMAT/GRE Tutor l Admission Consultant l On-Demand Course creator
Posts: 5957
Own Kudos [?]: 13376 [0]
Given Kudos: 124
Location: India
GMAT: QUANT+DI EXPERT
Schools: IIM (A) ISB '24
GMAT 1: 750 Q51 V41
WE:Education (Education)
Send PM
Reviews Badge CAT Tests Forum Quiz Mode
Re: If (1 – 1.25)N = 1, then N = [#permalink] New post   06 May 2021, 23:52
Expert Reply
Bunuel wrote:
If (1 – 1.25)N = 1, then N =

(A) −400
(B) −140
(C) −4
(D) 4
(E) 400

Kudos for a correct solution.


Wanna make solving the Official Questions interesting???


Click here and solve 1000+ Official Questions with Video solutions as Timed Sectional Tests
and Dedicated Data Sufficiency (DS) Course


Answer: Option C

Video solution by GMATinsight



Get TOPICWISE: Concept Videos | Practice Qns 100+ | Official Qns 50+ | 100% Video solution CLICK HERE.
Two MUST join YouTube channels : GMATinsight (1000+ FREE Videos) and GMATclub :)
User avatar
bumpbot
Non-Human User
Joined: 09 Sep 2013
Posts: 32633
Own Kudos [?]: 821 [0]
Given Kudos: 0
Send PM
Re: If (1 1.25)N = 1, then N = [#permalink] New post   11 Jan 2024, 05:50
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
gmatclubot
Re: If (1 1.25)N = 1, then N = [#permalink]
11 Jan 2024, 05:50
Moderators:
Bunuel
Math Expert
92883 posts
yashikaaggarwal
Senior Moderator - Masters Forum
3137 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