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

It is currently 13 Dec 2018, 05:22

R1 Admission Decisions:

Stanford Chat (Calls Started)  |  Wharton Chat  (Calls Expected Soon)  |  Fuqua Chat (Calls Expected Soon)


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
Events & Promotions in December
PrevNext
SuMoTuWeThFrSa
2526272829301
2345678
9101112131415
16171819202122
23242526272829
303112345
Open Detailed Calendar
  • The winning strategy for 700+ on the GMAT

     December 13, 2018

     December 13, 2018

     08:00 AM PST

     09:00 AM PST

    What people who reach the high 700's do differently? We're going to share insights, tips and strategies from data we collected on over 50,000 students who used examPAL.
  • GMATbuster's Weekly GMAT Quant Quiz, Tomorrow, Saturday at 9 AM PST

     December 14, 2018

     December 14, 2018

     09:00 AM PST

     10:00 AM PST

    10 Questions will be posted on the forum and we will post a reply in this Topic with a link to each question. There are prizes for the winners.

If y = 2x, what is the value of z?

  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: 51184
If y = 2x, what is the value of z?  [#permalink]

Show Tags

New post 24 Aug 2018, 01:51
00:00
A
B
C
D
E

Difficulty:

  15% (low)

Question Stats:

97% (00:59) correct 3% (03:13) wrong based on 33 sessions

HideShow timer Statistics

Image
Note: Figure not drawn to scale.

If y = 2x, what is the value of z?

A. 90
B. 110
C. 120
D. 165
E. 240


Attachment:
image019.jpg
image019.jpg [ 3.32 KiB | Viewed 374 times ]

_________________

New to the Math Forum?
Please read this: Ultimate GMAT Quantitative Megathread | All You Need for Quant | PLEASE READ AND FOLLOW: 12 Rules for Posting!!!

Resources:
GMAT Math Book | Triangles | Polygons | Coordinate Geometry | Factorials | Circles | Number Theory | Remainders; 8. Overlapping Sets | PDF of Math Book; 10. Remainders | GMAT Prep Software Analysis | SEVEN SAMURAI OF 2012 (BEST DISCUSSIONS) | Tricky questions from previous years.

Collection of Questions:
PS: 1. Tough and Tricky questions; 2. Hard questions; 3. Hard questions part 2; 4. Standard deviation; 5. Tough Problem Solving Questions With Solutions; 6. Probability and Combinations Questions With Solutions; 7 Tough and tricky exponents and roots questions; 8 12 Easy Pieces (or not?); 9 Bakers' Dozen; 10 Algebra set. ,11 Mixed Questions, 12 Fresh Meat

DS: 1. DS tough questions; 2. DS tough questions part 2; 3. DS tough questions part 3; 4. DS Standard deviation; 5. Inequalities; 6. 700+ GMAT Data Sufficiency Questions With Explanations; 7 Tough and tricky exponents and roots questions; 8 The Discreet Charm of the DS; 9 Devil's Dozen!!!; 10 Number Properties set., 11 New DS set.


What are GMAT Club Tests?
Extra-hard Quant Tests with Brilliant Analytics

Director
Director
User avatar
P
Joined: 31 Oct 2013
Posts: 876
Concentration: Accounting, Finance
GPA: 3.68
WE: Analyst (Accounting)
Re: If y = 2x, what is the value of z?  [#permalink]

Show Tags

New post 24 Aug 2018, 01:58
Bunuel wrote:
Image
Note: Figure not drawn to scale.

If y = 2x, what is the value of z?

A. 90
B. 110
C. 120
D. 165
E. 240


Attachment:
image019.jpg



x = 50.

y = 2x = 2*50 = 100

Let label the unknown angle.

a + 60 = 180

a = 120.

Now,

x + 2y + a + z = 360

50 + 100 + 120 + z = 360

z = 90.

The best answer is A.
Ask GMAT Experts Forum Moderator
User avatar
V
Status: Preparing for GMAT
Joined: 25 Nov 2015
Posts: 984
Location: India
GPA: 3.64
GMAT ToolKit User Premium Member Reviews Badge CAT Tests
Re: If y = 2x, what is the value of z?  [#permalink]

Show Tags

New post 24 Aug 2018, 02:04
1
Bunuel wrote:
Image
Note: Figure not drawn to scale.

If y = 2x, what is the value of z?

A. 90
B. 110
C. 120
D. 165
E. 240


Attachment:
image019.jpg


x=50°
y=2x=100°
Let the 4th angle be w
w=180-60=120°
Since the four sides form a quadrilateral and sum of internal angles of a quadrilateral = 360°
z = 360°-(50°+100°+120°) = 90°
Answer A.
_________________

Please give kudos, if you like my post

When the going gets tough, the tough gets going...

GMAT Club Bot
Re: If y = 2x, what is the value of z? &nbs [#permalink] 24 Aug 2018, 02:04
Display posts from previous: Sort by

If y = 2x, what is the value of z?

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


Copyright

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®.