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

It is currently 17 Jan 2019, 01:01

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 January
PrevNext
SuMoTuWeThFrSa
303112345
6789101112
13141516171819
20212223242526
272829303112
Open Detailed Calendar
  • The winning strategy for a high GRE score

     January 17, 2019

     January 17, 2019

     08:00 AM PST

     09:00 AM PST

    Learn the winning strategy for a high GRE score — what do people who reach a high score do differently? We're going to share insights, tips and strategies from data we've collected from over 50,000 students who used examPAL.
  • Free GMAT Strategy Webinar

     January 19, 2019

     January 19, 2019

     07:00 AM PST

     09:00 AM PST

    Aiming to score 760+? Attend this FREE session to learn how to Define your GMAT Strategy, Create your Study Plan and Master the Core Skills to excel on the GMAT.

Which of the following could be a value of x, in the diagram above?

  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: 52182
Which of the following could be a value of x, in the diagram above?  [#permalink]

Show Tags

New post 22 May 2016, 12:43
00:00
A
B
C
D
E

Difficulty:

  35% (medium)

Question Stats:

71% (01:37) correct 29% (01:24) wrong based on 270 sessions

HideShow timer Statistics

Image
Which of the following could be a value of x, in the diagram above?

A. 10
B. 20
C. 40
D. 50
E. any of the above

Attachment:
p002-1.gif
p002-1.gif [ 988 Bytes | Viewed 11897 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

Most Helpful Expert Reply
Math Expert
User avatar
V
Joined: 02 Aug 2009
Posts: 7199
Re: Which of the following could be a value of x, in the diagram above?  [#permalink]

Show Tags

New post 22 May 2016, 19:44
2
3
Bunuel wrote:
Image
Which of the following could be a value of x, in the diagram above?

A. 10
B. 20
C. 40
D. 50
E. any of the above

Attachment:
p002-1.gif


Since angle ABC is above angle ADC, angle ABC>angle ADC.... so \(5x>90...... x>\frac{90}{5}........x>18\)
the max value of any angle can be just below 180 but not >180.....so\(5x<180......x<\frac{180}{5}......x<36\)

so \(18<x<36\)

ONLY 20 fits in this range
ans 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

General Discussion
CEO
CEO
User avatar
D
Joined: 11 Sep 2015
Posts: 3326
Location: Canada
Re: Which of the following could be a value of x, in the diagram above?  [#permalink]

Show Tags

New post 16 Jun 2016, 10:30
Top Contributor
1
Bunuel wrote:
Image
Which of the following could be a value of x, in the diagram above?

A. 10
B. 20
C. 40
D. 50
E. any of the above

Attachment:
p002-1.gif


This question requires us to take note of the fact that there's nothing to suggest that the diagram is not drawn to scale.

IMPORTANT: On the GMAT, the diagrams in problem solving questions are DRAWN TO SCALE unless stated otherwise.

Since we can assume that the diagram is drawn to scale, we can see that 5x is greater than 90 degrees (and less than 180 degrees). So, the only answer choice that works is B

Here's a video on this topic as well as other assumptions we can make about diagrams on the GMAT

_________________

Test confidently with gmatprepnow.com
Image

Director
Director
User avatar
G
Joined: 20 Feb 2015
Posts: 795
Concentration: Strategy, General Management
Premium Member
Re: Which of the following could be a value of x, in the diagram above?  [#permalink]

Show Tags

New post 17 Jun 2016, 00:56
1
Bunuel wrote:
Image
Which of the following could be a value of x, in the diagram above?

A. 10
B. 20
C. 40
D. 50
E. any of the above

Attachment:
p002-1.gif



5x=D+C
or,
5x=90 +C
or,
5x > 90
substituting x = 10 , 5x =50 < 90
now x cannot take values 40 or 50 because that will make 5x > 180
the only option left is 20 , so B
Intern
Intern
avatar
B
Joined: 03 Aug 2017
Posts: 27
Re: Which of the following could be a value of x, in the diagram above?  [#permalink]

Show Tags

New post 04 Apr 2018, 05:04
A. 10
B. 20
C. 40
D. 50
E. any of the above

SOLVING BY ANS CHOICE

A) 10 WHEN X IS 10 5X = 50 AND SINCE 5X IS ON A STRAIGHT LINE 5X +dbc = 180 THERFORE IT MEANS DBC = 180-50 = 130 BUT THAT CANNOT BE AS ONE ANGLE OF THE TRIANGLE IS ALREADY 90 THERFORE A = RULED OUT.

B) X=20 MEans 5x = 100 and angle dbc = 80 therefore 90+80+10 = 180 possible
c) x=40 means 5x= 200 not possible as both angle on a straight line max can be 180
d) x=50 mens 5x=250 not possible as both angle on a straight line = 180 thefore ans = b
GMAT Club Bot
Re: Which of the following could be a value of x, in the diagram above? &nbs [#permalink] 04 Apr 2018, 05:04
Display posts from previous: Sort by

Which of the following could be a value of x, in the diagram above?

  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®.