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

It is currently 14 Oct 2019, 13:33

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

If x/y = 2, then (x-y)/y =

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

Hide Tags

Find Similar Topics 
Retired Moderator
avatar
V
Joined: 22 Jun 2014
Posts: 1093
Location: India
Concentration: General Management, Technology
GMAT 1: 540 Q45 V20
GPA: 2.49
WE: Information Technology (Computer Software)
GMAT ToolKit User
If x/y = 2, then (x-y)/y =  [#permalink]

Show Tags

New post 15 Dec 2018, 08:40
00:00
A
B
C
D
E

Difficulty:

  5% (low)

Question Stats:

96% (00:19) correct 4% (00:19) wrong based on 80 sessions

HideShow timer Statistics

If \(\frac{x}{y} = 2\), then \(\frac{(x-y)}{y}\) =


(A) \(-1\)

(B) \(-\frac{1}{2}\)

(C) \(\frac{1}{2}\)

(D) \(1\)

(E) \(2\)


Project PS Butler : Question #80


Subscribe to get Daily Email - Click Here | Subscribe via RSS - RSS

_________________
Senior Manager
Senior Manager
User avatar
G
Joined: 15 Feb 2017
Posts: 299
Re: If x/y = 2, then (x-y)/y =  [#permalink]

Show Tags

New post 15 Dec 2018, 08:52
[quote="HKD1710"]if \(\frac{x}{y} = 2\), then \(\frac{(x-y)}{y}\) =

(A) \(-1\)
(B) \(-\frac{1}{2}\)
(C) \(\frac{1}{2}\)
(D) \(1\)
(E) \(2\)


X/Y = 2,
X - Y /Y = X/ Y - 1

2- 1 = 1

Choice D
_________________
IMPOSSIBLE IS JUST AN OPINION
CEO
CEO
User avatar
V
Joined: 12 Sep 2015
Posts: 3996
Location: Canada
Re: If x/y = 2, then (x-y)/y =  [#permalink]

Show Tags

New post 15 Dec 2018, 09:02
Top Contributor
HKD1710 wrote:
if \(\frac{x}{y} = 2\), then \(\frac{(x-y)}{y}\) =

(A) \(-1\)
(B) \(-\frac{1}{2}\)
(C) \(\frac{1}{2}\)
(D) \(1\)
(E) \(2\)

Project PS Butler : Question #80


Subscribe to get Daily Email - Click Here | Subscribe via RSS - RSS


APPROACH #1: Use the fact that (a - b)/c = a/b - b/c
So, (x - y)/y = x/y - y/y
= x/y - 1
= 2 - 1
= 1
Answer: D

APPROACH #2: Plug in values.
If x/y = 2, then it could be the case that x = 6 and y = 3
So, (x - y)/y = (6 - 3)/3
= 3/3
= 1
Answer: D

Cheers,
Brent
_________________
Test confidently with gmatprepnow.com
Image
Intern
Intern
avatar
Joined: 15 Dec 2018
Posts: 1
Re: If x/y = 2, then (x-y)/y =  [#permalink]

Show Tags

New post 15 Dec 2018, 09:27
x/y = 2.... eqn 1

(x - y)/y = z ... eqn 2

From 1.
x = 2y .... eqn 3


Putting 2 into 3

(2y - y)/y = y/y = z

Therefore, z = 1 (D)

Posted from my mobile device
Rice (Jones) School Moderator
User avatar
P
Joined: 18 Jun 2018
Posts: 297
Location: United States (AZ)
Concentration: Finance, Healthcare
GMAT 1: 600 Q44 V28
GPA: 3.36
CAT Tests
Re: If x/y = 2, then (x-y)/y =  [#permalink]

Show Tags

New post 16 Dec 2018, 16:50
1
GMATPrepNow Also got D but OA is C, any insight?


GMATPrepNow wrote:
HKD1710 wrote:
if \(\frac{x}{y} = 2\), then \(\frac{(x-y)}{y}\) =

(A) \(-1\)
(B) \(-\frac{1}{2}\)
(C) \(\frac{1}{2}\)
(D) \(1\)
(E) \(2\)

Project PS Butler : Question #80


Subscribe to get Daily Email - Click Here | Subscribe via RSS - RSS


APPROACH #1: Use the fact that (a - b)/c = a/b - b/c
So, (x - y)/y = x/y - y/y
= x/y - 1
= 2 - 1
= 1
Answer: D

APPROACH #2: Plug in values.
If x/y = 2, then it could be the case that x = 6 and y = 3
So, (x - y)/y = (6 - 3)/3
= 3/3
= 1
Answer: D

Cheers,
Brent
CEO
CEO
User avatar
V
Joined: 12 Sep 2015
Posts: 3996
Location: Canada
Re: If x/y = 2, then (x-y)/y =  [#permalink]

Show Tags

New post 16 Dec 2018, 19:16
1
Top Contributor
funsogu wrote:
GMATPrepNow Also got D but OA is C, any insight?


GMATPrepNow wrote:
HKD1710 wrote:
if \(\frac{x}{y} = 2\), then \(\frac{(x-y)}{y}\) =

(A) \(-1\)
(B) \(-\frac{1}{2}\)
(C) \(\frac{1}{2}\)
(D) \(1\)
(E) \(2\)

Project PS Butler : Question #80


Subscribe to get Daily Email - Click Here | Subscribe via RSS - RSS


APPROACH #1: Use the fact that (a - b)/c = a/b - b/c
So, (x - y)/y = x/y - y/y
= x/y - 1
= 2 - 1
= 1
Answer: D

APPROACH #2: Plug in values.
If x/y = 2, then it could be the case that x = 6 and y = 3
So, (x - y)/y = (6 - 3)/3
= 3/3
= 1
Answer: D

Cheers,
Brent


I think the OP may have entered the wrong answer.

Cheers,
Brent
_________________
Test confidently with gmatprepnow.com
Image
Senior SC Moderator
avatar
V
Joined: 22 May 2016
Posts: 3537
If x/y = 2, then (x-y)/y =  [#permalink]

Show Tags

New post 16 Dec 2018, 20:34
1
GMATPrepNow wrote:
funsogu wrote:
GMATPrepNow Also got D but OA is C, any insight?

I think the OP may have entered the wrong answer.

Cheers,
Brent

funsogu , GMATPrepNow (Brent)

Edited. Thanks.
_________________
SC Butler has resumed! Get two SC questions to practice, whose links you can find by date, here.




Choose life.
GMAT Club Bot
If x/y = 2, then (x-y)/y =   [#permalink] 16 Dec 2018, 20:34
Display posts from previous: Sort by

If x/y = 2, then (x-y)/y =

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





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