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

It is currently 16 Jul 2018, 17:24

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

X, Y, Z, W are all positive.. What is the value of the ratio Z:W ?

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

Hide Tags

DS Forum Moderator
avatar
P
Joined: 22 Aug 2013
Posts: 1273
Location: India
Premium Member
X, Y, Z, W are all positive.. What is the value of the ratio Z:W ? [#permalink]

Show Tags

New post 12 Mar 2018, 05:00
00:00
A
B
C
D
E

Difficulty:

  45% (medium)

Question Stats:

65% (01:00) correct 35% (00:39) wrong based on 62 sessions

HideShow timer Statistics

X, Y, Z, W are all positive numbers. What is the value of the ratio Z:W ?

(1) Ratio X:Y = 2:3

(2) Z equals half of the ratio X:Y and W equals thrice of the ratio X:Y.
Expert Post
SVP
SVP
User avatar
P
Joined: 08 Jul 2010
Posts: 2119
Location: India
GMAT: INSIGHT
WE: Education (Education)
Reviews Badge
X, Y, Z, W are all positive.. What is the value of the ratio Z:W ? [#permalink]

Show Tags

New post Updated on: 12 Mar 2018, 07:27
amanvermagmat wrote:
X, Y, Z, W are all positive numbers. What is the value of the ratio Z:W ?

(1) Ratio X:Y = 2:3

(2) Z equals half of the ratio X:Y and W equals thrice of the ratio X:Y.


Question : z:w = ?

Statement 1: X:Y = 2:3

No information about ratio of Z and W hence
NOT SUFFICIENT

Statement 2: Z equals half of the ratio X:Y and W equals thrice of the ratio X:Y.
Z = (1/2)*(X:Y)
W = (3)*(X:Y)
Z:W = (1/2)/3 = 1/6

SUFFICIENT


Answer: Option B
_________________

Prosper!!!
GMATinsight
Bhoopendra Singh and Dr.Sushma Jha
e-mail: info@GMATinsight.com I Call us : +91-9999687183 / 9891333772
Online One-on-One Skype based classes and Classroom Coaching in South and West Delhi
http://www.GMATinsight.com/testimonials.html

22 ONLINE FREE (FULL LENGTH) GMAT CAT (PRACTICE TESTS) LINK COLLECTION


Originally posted by GMATinsight on 12 Mar 2018, 06:33.
Last edited by GMATinsight on 12 Mar 2018, 07:27, edited 1 time in total.
Expert Post
Math Expert
User avatar
V
Joined: 02 Aug 2009
Posts: 6210
X, Y, Z, W are all positive.. What is the value of the ratio Z:W ? [#permalink]

Show Tags

New post 12 Mar 2018, 06:45
GMATinsight wrote:
amanvermagmat wrote:
X, Y, Z, W are all positive numbers. What is the value of the ratio Z:W ?

(1) Ratio X:Y = 2:3

(2) Z equals half of the ratio X:Y and W equals thrice of the ratio X:Y.




Statement 2: Z equals half of the ratio X:Y and W equals thrice of the ratio X:Y.
Z and Y are dependent on the ratio of X:Y which is unklnown hence

NOT SUFFICIENT


Answer: Option C



Hi...
You are wrong on statement II..
Statement I is clearly insuff..
However in statement II, z and w are realtors to same term x/y, so that is sufficient..
z=1/2*x/y
w=3*x/y
So z/w=1/(2*3)=1/6
Sufficient

B
_________________

1) Absolute modulus : http://gmatclub.com/forum/absolute-modulus-a-better-understanding-210849.html#p1622372
2)Combination of similar and dissimilar things : http://gmatclub.com/forum/topic215915.html
3) effects of arithmetic operations : https://gmatclub.com/forum/effects-of-arithmetic-operations-on-fractions-269413.html


GMAT online Tutor

Intern
Intern
avatar
B
Joined: 23 Jan 2018
Posts: 3
CAT Tests
Re: X, Y, Z, W are all positive.. What is the value of the ratio Z:W ? [#permalink]

Show Tags

New post 12 Mar 2018, 07:23
You have used both statement A and B to arrive at ratio at Z:W so answer is C


Sent from my iPhone using GMAT Club Forum
Re: X, Y, Z, W are all positive.. What is the value of the ratio Z:W ?   [#permalink] 12 Mar 2018, 07:23
Display posts from previous: Sort by

X, Y, Z, W are all positive.. What is the value of the ratio Z:W ?

  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®.