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

It is currently 18 Nov 2018, 00:08

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 November
PrevNext
SuMoTuWeThFrSa
28293031123
45678910
11121314151617
18192021222324
2526272829301
Open Detailed Calendar
  • How to QUICKLY Solve GMAT Questions - GMAT Club Chat

     November 20, 2018

     November 20, 2018

     09:00 AM PST

     10:00 AM PST

    The reward for signing up with the registration form and attending the chat is: 6 free examPAL quizzes to practice your new skills after the chat.
  • The winning strategy for 700+ on the GMAT

     November 20, 2018

     November 20, 2018

     06:00 PM EST

     07:00 PM EST

    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.

For the numbers on the number line above, which of the follo

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

Hide Tags

Intern
Intern
avatar
Joined: 27 Feb 2012
Posts: 37
For the numbers on the number line above, which of the follo  [#permalink]

Show Tags

New post Updated on: 10 Feb 2013, 00:53
00:00
A
B
C
D
E

Difficulty:

  15% (low)

Question Stats:

76% (01:38) correct 24% (01:49) wrong based on 254 sessions

HideShow timer Statistics

Attachment:
Number Line.png
Number Line.png [ 2.84 KiB | Viewed 6799 times ]
For the numbers on the number line above, which of the following statements is true?

A. x + y > y
B. xz > xy
C. tz < z
D. m^u < 0
E. t^m > 0

Originally posted by jsphcal on 10 Feb 2013, 00:43.
Last edited by Bunuel on 10 Feb 2013, 00:53, edited 1 time in total.
Renamed the topic, edited the question and moved to PS forum.
Math Expert
User avatar
V
Joined: 02 Sep 2009
Posts: 50623
Re: For the numbers on the number line above, which of the follo  [#permalink]

Show Tags

New post 10 Feb 2013, 01:03
1
1
First of all, please read carefully and follow: rules-for-posting-please-read-this-before-posting-133935.html Pay attention to the rules #2, 3, 5, and 10. Thank you.

Image
For the numbers on the number line above, which of the following statements is true?

Analyze each option:

A. x + y > y --> x > 0. Not true as per diagram x < 0.

B. xz > xy --> reduce by negative x and flip sign: z < y. Not true.

C. tz < z --> reduce by positive z: t < 1. Not true.

D. m^u < 0 --> m^u = (-1)^2 = 1 > 0. Hence, this statement is also not true.

E. t^m > 0. By POE this must be true. To elaborate: t^m = (positive)^(negative) = positive.

Answer: E.

Hope its clear.
_________________

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

Intern
Intern
avatar
Joined: 27 Feb 2012
Posts: 37
Re: For the numbers on the number line above, which of the follo  [#permalink]

Show Tags

New post 19 Feb 2013, 21:39
Bunuel wrote:
First of all, please read carefully and follow: rules-for-posting-please-read-this-before-posting-133935.html Pay attention to the rules #2, 3, 5, and 10. Thank you.

Image
For the numbers on the number line above, which of the following statements is true?

Analyze each option:

A. x + y > y --> x > 0. Not true as per diagram x < 0.

B. xz > xy --> reduce by negative x and flip sign: z < y. Not true.

C. tz < z --> reduce by positive z: t < 1. Not true.

D. m^u < 0 --> m^u = (-1)^2 = 1 > 0. Hence, this statement is also not true.

E. t^m > 0. By POE this must be true. To elaborate: t^m = (positive)^(negative) = positive.

Answer: E.

Hope its clear.




At first didn't get why B was not correct but when i took another look at what the Diagram is giving us, then it is clear why we divide by -x
Manager
Manager
User avatar
G
Joined: 10 Apr 2018
Posts: 181
Re: For the numbers on the number line above, which of the follo  [#permalink]

Show Tags

New post 13 Sep 2018, 21:50
Hi,

Let's analyze each option

A. x + y > y
So x>y-y
Is x>0 NO


B. xz > xy
xz-xy>0
x(z-y)>0

-ve( +ve - (-ve))>)
-ve(+ve+ve)
So-ve
No it will be negative or < 0, since x is negative

C. tz < z

tz-z<0
z(t-1)<0
No it will be >0

D. m^u < 0
\((-1)^2\)>0
NO

E. t^m > 0

Yes

Probus
GMAT Club Bot
Re: For the numbers on the number line above, which of the follo &nbs [#permalink] 13 Sep 2018, 21:50
Display posts from previous: Sort by

For the numbers on the number line above, which of the follo

  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®.