It is currently 21 Nov 2018, 05:49
My Tests

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.

z - x or y

  Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
TAGS:
Moderator
Moderator
User avatar
Joined: 18 Apr 2015
Posts: 4928
Followers: 74

Kudos [?]: 982 [0], given: 4518

CAT Tests
z - x or y [#permalink] New post 26 Aug 2018, 03:00
Expert's post
00:00

Question Stats:

100% (01:12) correct 0% (00:00) wrong based on 11 sessions
Attachment:
lines.jpg
lines.jpg [ 12.28 KiB | Viewed 625 times ]


Quantity A
Quantity B
\(z-x\)
\(y\)


A) Quantity A is greater.
B) Quantity B is greater.
C) The two quantities are equal.
D) The relationship cannot be determined from the information given.

Kudos for R.A.E
[Reveal] Spoiler: OA

_________________

Get the 2 FREE GREPrepclub Tests

Director
Director
Joined: 20 Apr 2016
Posts: 743
Followers: 6

Kudos [?]: 500 [0], given: 86

CAT Tests
Re: z - x or y [#permalink] New post 26 Aug 2018, 04:54
Carcass wrote:
Attachment:
The attachment lines.jpg is no longer available


Quantity A
Quantity B
\(z-x\)
\(y\)


A) Quantity A is greater.
B) Quantity B is greater.
C) The two quantities are equal.
D) The relationship cannot be determined from the information given.

Kudos for R.A.E


As per the diagram attached, we can write as
In the triangle

\(180 - z + y + x =180\)

or\(y = z - x\)

Option C
Attachments

lines.jpg
lines.jpg [ 9.12 KiB | Viewed 610 times ]


_________________

If you found this post useful, please let me know by pressing the Kudos Button

2 KUDOS received
GRE Instructor
User avatar
Joined: 10 Apr 2015
Posts: 1188
Followers: 44

Kudos [?]: 1059 [2] , given: 6

CAT Tests
Re: z - x or y [#permalink] New post 28 Aug 2018, 11:59
2
This post received
KUDOS
Expert's post
Carcass wrote:
Attachment:
lines.jpg


Quantity A
Quantity B
\(z-x\)
\(y\)


A) Quantity A is greater.
B) Quantity B is greater.
C) The two quantities are equal.
D) The relationship cannot be determined from the information given.

Kudos for R.A.E


Since opposite angles are equal, we can see that the angle opposite x° is also
Image


Also, since angles on a line add to 180°, the angle sharing a line with z° must equal (180 - z)°
Image


Finally, since the angles in a triangle must add to 180°, we can write: (180 - z)° + + = 180°
Simplify: 180 - z + x + y = 180
Subtract 180 from both sides to get: -z + x + y = 0
Add z to both sides to get: x + y = z
Subtract x from both sides to get: y = z - x

Since y = z - x, the correct answer is C

Cheers,
Brent
_________________

Brent Hanneson – Creator of greenlighttestprep.com
Image
Sign up for our free GRE Question of the Day emails

Manager
Manager
Joined: 29 Nov 2017
Posts: 190
Location: United States
GRE 1: Q142 V146
WE: Information Technology (Computer Software)
Followers: 0

Kudos [?]: 77 [0], given: 99

Re: z - x or y [#permalink] New post 28 Aug 2018, 21:10
All we need to do here is to carefully label the unknown angles.

Then we need to add all 3 labled angles and equate it to 180 because it is a triangle
then solve for Y and Y will be Y=Z-X
Re: z - x or y   [#permalink] 28 Aug 2018, 21:10
Display posts from previous: Sort by

z - x or y

  Question banks Downloads My Bookmarks Reviews Important topics  


cron

GRE Prep Club Forum Home| About| Terms and Conditions and Privacy Policy| GRE Prep Club Rules| Contact

Powered by phpBB © phpBB Group

Kindly note that the GRE® test is a registered trademark of the Educational Testing Service®, and this site has neither been reviewed nor endorsed by ETS®.