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

 It is currently 14 Oct 2019, 02:06 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

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.  If 0.25 + x = y and y/x = 0.2, then y =

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

Hide Tags

Math Expert V
Joined: 02 Sep 2009
Posts: 58297
If 0.25 + x = y and y/x = 0.2, then y =  [#permalink]

Show Tags 00:00

Difficulty:   25% (medium)

Question Stats: 78% (01:45) correct 22% (02:00) wrong based on 54 sessions

HideShow timer Statistics

If 0.25 + x = y and y/x = 0.2, then y =

A. -1
B. -1/2
C. -1/4
D. -1/8
E. -1/16

_________________
GMAT Club Legend  D
Joined: 18 Aug 2017
Posts: 4976
Location: India
Concentration: Sustainability, Marketing
GPA: 4
WE: Marketing (Energy and Utilities)
Re: If 0.25 + x = y and y/x = 0.2, then y =  [#permalink]

Show Tags

Bunuel wrote:
If 0.25 + x = y and y/x = 0.2, then y =

A. -1
B. -1/2
C. -1/4
D. -1/8
E. -1/16

SOLVE for x=.2y
0.25 + x = y
y = -.0625 ~ -1/16
IMO E
_________________
If you liked my solution then please give Kudos. Kudos encourage active discussions.
Intern  B
Joined: 05 Mar 2019
Posts: 16
Re: If 0.25 + x = y and y/x = 0.2, then y =  [#permalink]

Show Tags

I get a different result, why??

0.25+x=y thus

y/x= 0.25+x/x=0.2

0.25/x +x/x = 0.25/x +1 = 0.2

0.25=-0.8x
x=0.25/(-0.8)=-5/16

Any clues where I went wrong?
Target Test Prep Representative D
Status: Founder & CEO
Affiliations: Target Test Prep
Joined: 14 Oct 2015
Posts: 8040
Location: United States (CA)
Re: If 0.25 + x = y and y/x = 0.2, then y =  [#permalink]

Show Tags

1
Bunuel wrote:
If 0.25 + x = y and y/x = 0.2, then y =

A. -1
B. -1/2
C. -1/4
D. -1/8
E. -1/16

We see that y = 0.2x, thus:

0.25 + x = 0.2x

0.25 = -0.8x

25 = -80x

x = 25/-80 = -5/16

So y = 0.2(-5/16) = -1/16.

_________________

Scott Woodbury-Stewart

Founder and CEO

Scott@TargetTestPrep.com

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.

CR Forum Moderator V
Joined: 25 Apr 2018
Posts: 636
GMAT 1: 680 Q49 V34 Re: If 0.25 + x = y and y/x = 0.2, then y =  [#permalink]

Show Tags

1
Berlin92 wrote:
I get a different result, why??

0.25+x=y thus

y/x= 0.25+x/x=0.2

0.25/x +x/x = 0.25/x +1 = 0.2

0.25=-0.8x
x=0.25/(-0.8)=-5/16

Any clues where I went wrong?

Berlin92

Question is asking y and you have found out x.
Try to find y and your answer will match OA

Thanks

Posted from my mobile device
_________________
Please give kudos if you found my posts helpful!

Project CR Butler - 2 CR's everyday Re: If 0.25 + x = y and y/x = 0.2, then y =   [#permalink] 25 Mar 2019, 23:44
Display posts from previous: Sort by

If 0.25 + x = y and y/x = 0.2, then y =

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

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