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

 It is currently 18 Dec 2018, 19:33

### 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

## Events & Promotions

###### Events & Promotions in December
PrevNext
SuMoTuWeThFrSa
2526272829301
2345678
9101112131415
16171819202122
23242526272829
303112345
Open Detailed Calendar
• ### Happy Christmas 20% Sale! Math Revolution All-In-One Products!

December 20, 2018

December 20, 2018

10:00 PM PST

11:00 PM PST

This is the most inexpensive and attractive price in the market. Get the course now!
• ### Key Strategies to Master GMAT SC

December 22, 2018

December 22, 2018

07:00 AM PST

09:00 AM PST

Attend this webinar to learn how to leverage Meaning and Logic to solve the most challenging Sentence Correction Questions.

# If wxyz ≠ 0, does the ratio of w to x equal the ratio of y to z?

Author Message
TAGS:

### Hide Tags

Math Expert
Joined: 02 Sep 2009
Posts: 51280
If wxyz ≠ 0, does the ratio of w to x equal the ratio of y to z?  [#permalink]

### Show Tags

02 Aug 2018, 00:14
00:00

Difficulty:

25% (medium)

Question Stats:

70% (01:08) correct 30% (01:02) wrong based on 66 sessions

### HideShow timer Statistics

If wxyz ≠ 0, does the ratio of w to x equal the ratio of y to z?

(1) w/y = x/z

(2) wy = xz

_________________
Intern
Joined: 02 Aug 2018
Posts: 2
Re: If wxyz ≠ 0, does the ratio of w to x equal the ratio of y to z?  [#permalink]

### Show Tags

02 Aug 2018, 00:30
(1) is sufficient w/x=y/z
(2) is insufficient, w/x = z/y

Sent from my iPhone using GMAT Club Forum mobile app
SC Moderator
Joined: 30 Jan 2015
Posts: 676
Location: India
Concentration: Operations, Marketing
GPA: 3.5
Re: If wxyz ≠ 0, does the ratio of w to x equal the ratio of y to z?  [#permalink]

### Show Tags

02 Aug 2018, 01:40
Is w/x = y/z ?

(1) w/y = x/z
w/x = y/z
Sufficient

(2) wy = xz
w/x = z/y
Insufficient

Hence, A.
_________________

The few, the fearless !

Thanks

Senior Manager
Joined: 15 Oct 2017
Posts: 314
Re: If wxyz ≠ 0, does the ratio of w to x equal the ratio of y to z?  [#permalink]

### Show Tags

02 Aug 2018, 11:31
1
I have a question: If statement 2 states that w/x = z/y, so is not it answering to the given question as "no" and hence is sufficient too in itself (no is also an answer, right)? Even though, both the statement are giving contradicting solutions. What am I missing?
Director
Status: Learning stage
Joined: 01 Oct 2017
Posts: 932
WE: Supply Chain Management (Energy and Utilities)
Re: If wxyz ≠ 0, does the ratio of w to x equal the ratio of y to z?  [#permalink]

### Show Tags

02 Aug 2018, 19:24
1
urvashis09 wrote:
I have a question: If statement 2 states that w/x = z/y, so is not it answering to the given question as "no" and hence is sufficient too in itself (no is also an answer, right)? Even though, both the statement are giving contradicting solutions. What am I missing?

Hi urvashis09,

Question stem:- Is $$\frac{w}{x}=\frac{y}{z}$$? (Y/N)

St2:- wy=xz

"NO" case is known to you. ($$\frac{w}{x}=\frac{z}{y}\neq{\frac{y}{z}}$$)

"Yes" Case:-
1. All the four variables are equal. i.e., w=x=y=z=Any number (say 1)
So, wx=yz=1.
Therefore,$$\frac{w}{x}=\frac{y}{z}=1$$
So, st2 is insufficient due to inconsistency.

Hope it helps.
_________________

Regards,

PKN

Rise above the storm, you will find the sunshine

Re: If wxyz ≠ 0, does the ratio of w to x equal the ratio of y to z? &nbs [#permalink] 02 Aug 2018, 19:24
Display posts from previous: Sort by