Find all School-related info fast with the new School-Specific MBA Forum

It is currently 27 Aug 2014, 07:12

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.

Events & Promotions

Events & Promotions in June
Open Detailed Calendar

If x =-100^1/3*100^3 , then the value of 1/x is

  Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
TAGS:
1 KUDOS received
Manager
Manager
User avatar
Status: Never ever give up on yourself.Period.
Joined: 23 Aug 2012
Posts: 138
Location: India
Concentration: Finance, Human Resources
Schools: Mays '16
GMAT 1: 570 Q47 V21
GMAT 2: 690 Q50 V33
GPA: 3.5
WE: Information Technology (Investment Banking)
Followers: 8

Kudos [?]: 77 [1] , given: 35

If x =-100^1/3*100^3 , then the value of 1/x is [#permalink] New post 14 Jan 2013, 05:51
1
This post received
KUDOS
3
This post was
BOOKMARKED
00:00
A
B
C
D
E

Difficulty:

  45% (medium)

Question Stats:

52% (03:24) correct 48% (02:08) wrong based on 71 sessions
If x =-100^{1/3}*100^3 , then the value of 1/x is


A. between −5×10^6 and −4×10^6

B. between −2.5×10^−7 and −2×10^−7

C. equal to −100

D. between 2×10^−7 and 2.5×10^−7

E. between 4×10^6 and 5×10^6
[Reveal] Spoiler: OA

_________________

Don't give up on yourself ever. Period.
Beat it, no one wants to be defeated (My journey from 570 to 690) : beat-it-no-one-wants-to-be-defeated-journey-570-to-149968.html

Expert Post
Math Expert
User avatar
Joined: 02 Sep 2009
Posts: 19087
Followers: 3401

Kudos [?]: 24851 [0], given: 2696

Re: If x =-100^1/3*100^3 , then the value of 1/x is [#permalink] New post 14 Jan 2013, 06:19
Expert's post
daviesj wrote:
If x =-100^{1/3}*100^3 , then the value of 1/x is


A. between −5×10^6 and −4×10^6

B. between −2.5×10^−7 and −2×10^−7

C. equal to −100

D. between 2×10^−7 and 2.5×10^−7

E. between 4×10^6 and 5×10^6


-\sqrt[3]{100} a bit more than -5 and is a bit less than -4 (-5^3=-125 and -4^3=-64). Actually -\sqrt[3]{100}\approx{-4.6}

So, -5*100^3<x<-4*100^3 --> -5*10^6<x<-4*10^6 --> \frac{1}{-4*10^6}<\frac{1}{x}<\frac{1}{-5*10^6} --> \frac{1}{-0.4*10^7}<\frac{1}{x}<\frac{1}{-0.5*10^7} --> -2.5*10^{-7}<\frac{1}{x}<-2*10^{-7}.

Answer: B.

Hope it's clear.
_________________

NEW TO MATH FORUM? PLEASE READ THIS: ALL YOU NEED FOR QUANT!!!

PLEASE READ AND FOLLOW: 11 Rules for Posting!!!

RESOURCES: [GMAT MATH BOOK]; 1. Triangles; 2. Polygons; 3. Coordinate Geometry; 4. Factorials; 5. Circles; 6. Number Theory; 7. Remainders; 8. Overlapping Sets; 9. PDF of Math Book; 10. Remainders; 11. GMAT Prep Software Analysis NEW!!!; 12. SEVEN SAMURAI OF 2012 (BEST DISCUSSIONS) NEW!!!; 12. Tricky questions from previous years. NEW!!!;

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?
25 extra-hard Quant Tests

Get the best GMAT Prep Resources with GMAT Club Premium Membership

Intern
Intern
avatar
Joined: 03 Jul 2013
Posts: 40
Location: United States
Concentration: Finance, General Management
Schools: Mannheim '15
GPA: 3
WE: Human Resources (Consulting)
Followers: 0

Kudos [?]: 13 [0], given: 19

If x = (-100)^1/3 * (100)^3 [#permalink] New post 02 Sep 2013, 02:14
If x =(-100)^{1/3} * (100)^3, then the value of 1/x is :


A. between −5×10^6 and −4×10^6

B. between −2.5×10^−7 and −2×10^−7

C. equal to −100

D. between 2×10^−7 and 2.5×10^−7

E. between 4×10^6 and 5×10^6


Help Please !!
Expert Post
Math Expert
User avatar
Joined: 02 Sep 2009
Posts: 19087
Followers: 3401

Kudos [?]: 24851 [0], given: 2696

Re: If x = (-100)^1/3 * (100)^3 [#permalink] New post 02 Sep 2013, 06:26
Expert's post
Dhairya275 wrote:
If x =(-100)^{1/3} * (100)^3, then the value of 1/x is :


A. between −5×10^6 and −4×10^6

B. between −2.5×10^−7 and −2×10^−7

C. equal to −100

D. between 2×10^−7 and 2.5×10^−7

E. between 4×10^6 and 5×10^6


Help Please !!


Merging similar topics. Please refer to the solution above.
_________________

NEW TO MATH FORUM? PLEASE READ THIS: ALL YOU NEED FOR QUANT!!!

PLEASE READ AND FOLLOW: 11 Rules for Posting!!!

RESOURCES: [GMAT MATH BOOK]; 1. Triangles; 2. Polygons; 3. Coordinate Geometry; 4. Factorials; 5. Circles; 6. Number Theory; 7. Remainders; 8. Overlapping Sets; 9. PDF of Math Book; 10. Remainders; 11. GMAT Prep Software Analysis NEW!!!; 12. SEVEN SAMURAI OF 2012 (BEST DISCUSSIONS) NEW!!!; 12. Tricky questions from previous years. NEW!!!;

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?
25 extra-hard Quant Tests

Get the best GMAT Prep Resources with GMAT Club Premium Membership

Re: If x = (-100)^1/3 * (100)^3   [#permalink] 02 Sep 2013, 06:26
    Similar topics Author Replies Last post
Similar
Topics:
what is the value of |x| (1) x=-|x| (2)x^2=4 sacmanitin 6 12 Oct 2009, 23:45
What is the value of |x|? (1) x = -|x| (2) x^2 = 4 rao 5 11 Aug 2008, 18:00
If x is negative and the absolute value of 1/x is greater arjtryarjtry 7 30 Jul 2008, 17:25
Is X negative? 1. abs value (1-x) 1 2. abs value (1+x) 1 bmwhype2 6 01 Nov 2007, 04:44
What is the value of |x|? (1) x = -|x| (2) x^2 = 4 If rahulraao 10 16 Oct 2005, 00:44
Display posts from previous: Sort by

If x =-100^1/3*100^3 , then the value of 1/x is

  Question banks Downloads My Bookmarks Reviews Important topics  


cron

GMAT Club MBA Forum Home| About| Privacy Policy| Terms and Conditions| GMAT Club Rules| Contact| Sitemap

Powered by phpBB © phpBB Group and phpBB SEO

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®.