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

It is currently 21 Sep 2018, 10:45

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

What percent of 3x is 6y if x = 4y?

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

Hide Tags

Math Expert
User avatar
V
Joined: 02 Sep 2009
Posts: 49300
What percent of 3x is 6y if x = 4y?  [#permalink]

Show Tags

New post 21 May 2017, 12:30
1
00:00
A
B
C
D
E

Difficulty:

  15% (low)

Question Stats:

89% (00:35) correct 11% (00:50) wrong based on 45 sessions

HideShow timer Statistics

Senior Manager
Senior Manager
avatar
P
Joined: 13 Oct 2016
Posts: 289
Concentration: Operations, Leadership
GMAT 1: 600 Q44 V28
GMAT ToolKit User Premium Member
Re: What percent of 3x is 6y if x = 4y?  [#permalink]

Show Tags

New post 21 May 2017, 13:25
a/100 *3x = 6y

x = 4y therefore a/100*12y = 6y

a/100 = 6/12 -----> 50%

Hence the answer is option A
_________________

_______________________________________________
If you appreciate the post then please click +1Kudos :)

Intern
Intern
avatar
B
Joined: 28 May 2015
Posts: 34
Location: India
Schools: HEC Dec '17
GMAT 1: 710 Q51 V34
GPA: 2.2
Reviews Badge
Re: What percent of 3x is 6y if x = 4y?  [#permalink]

Show Tags

New post 21 May 2017, 13:32
1
Given x = 4y
Multiply 3 on both sides to get
3x = 12y
Now looking at this we can easily say that if 12y is 100% (100/100) of 3x
Therefore 6y will be 50%
Option A

Sent from my Redmi Note 3 using GMAT Club Forum mobile app
Director
Director
User avatar
D
Joined: 04 Dec 2015
Posts: 701
Location: India
Concentration: Technology, Strategy
Schools: ISB '19, IIMA , IIMB, XLRI
WE: Information Technology (Consulting)
GMAT ToolKit User
Re: What percent of 3x is 6y if x = 4y?  [#permalink]

Show Tags

New post 21 May 2017, 17:58
1
Bunuel wrote:
What percent of 3x is 6y if x = 4y?

(A) 50%
(B) 40%
(C) 30%
(D) 20%
(E) 18%


Let the unknown number be Z.

Z % of 3x is 6y => \(\frac{Z}{100}\) * 3x = 6y

Z = \(\frac{6y *100}{3x}\)

Given; x = 4y

Z = \(\frac{6y*100}{3*4y}\) = 50%

Answer A...

_________________
Kindly press "+1 Kudos" to appreciate :)
DS Forum Moderator
avatar
P
Joined: 22 Aug 2013
Posts: 1343
Location: India
Premium Member
Re: What percent of 3x is 6y if x = 4y?  [#permalink]

Show Tags

New post 21 May 2017, 23:03
Required percentage will be 6y/3x * 100 = 200y/x
We just need the ratio y/x to solve this

Given x=4y or y/x = 1/4

So required percentage = 200 * 1/4 = 50%
Hence A
Target Test Prep Representative
User avatar
G
Status: Head GMAT Instructor
Affiliations: Target Test Prep
Joined: 04 Mar 2011
Posts: 2835
Re: What percent of 3x is 6y if x = 4y?  [#permalink]

Show Tags

New post 23 May 2017, 17:19
1
Bunuel wrote:
What percent of 3x is 6y if x = 4y?

(A) 50%
(B) 40%
(C) 30%
(D) 20%
(E) 18%


We are given that x = 4y and need to determine 6y as a percent of 3x.

Thus:

6y/3x * 100 = ?

2y/x * 100 = ?

Since x = 4y, we can substitute 4y for x in our expression and we have:

2y/4y * 100 = 1/2 * 100 = 50%

Answer: A
_________________

Jeffery Miller
Head of GMAT Instruction

GMAT Quant Self-Study Course
500+ lessons 3000+ practice problems 800+ HD solutions

Re: What percent of 3x is 6y if x = 4y? &nbs [#permalink] 23 May 2017, 17:19
Display posts from previous: Sort by

What percent of 3x is 6y if x = 4y?

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

Events & Promotions

PREV
NEXT


GMAT Club MBA Forum Home| About| Terms and Conditions and Privacy Policy| GMAT Club Rules| Contact| Sitemap

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

Kindly note that the GMAT® test is a registered trademark of the Graduate Management Admission Council®, and this site has neither been reviewed nor endorsed by GMAC®.