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

It is currently 09 Dec 2018, 18:24

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
  • Free GMAT Algebra Webinar

     December 09, 2018

     December 09, 2018

     07:00 AM PST

     09:00 AM PST

    Attend this Free Algebra Webinar and learn how to master Inequalities and Absolute Value problems on GMAT.
  • Free lesson on number properties

     December 10, 2018

     December 10, 2018

     10:00 PM PST

     11:00 PM PST

    Practice the one most important Quant section - Integer properties, and rapidly improve your skills.

What is the value of ((64)^(1/2)))^(1/2)?

  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: 51035
What is the value of ((64)^(1/2)))^(1/2)?  [#permalink]

Show Tags

New post 03 Jul 2018, 08:22
1
00:00
A
B
C
D
E

Difficulty:

  5% (low)

Question Stats:

88% (00:22) correct 12% (00:25) wrong based on 40 sessions

HideShow timer Statistics

Math Expert
User avatar
V
Joined: 02 Aug 2009
Posts: 7095
Re: What is the value of ((64)^(1/2)))^(1/2)?  [#permalink]

Show Tags

New post 03 Jul 2018, 10:32
Bunuel wrote:
What is the value of \(\sqrt{\sqrt{64}}\)?


A. \(2\sqrt{2}\)

B. 4

C. \(4\sqrt{2}\)

D. 16

E. 32


\(\sqrt{\sqrt{64}}\)=\(\sqrt{\sqrt{8^2}}\)=\(\sqrt{8}=\sqrt{2^2*2}=2\sqrt{2}\)

A
_________________

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

Intern
Intern
User avatar
B
Joined: 09 May 2018
Posts: 6
Concentration: Finance, Technology
GMAT ToolKit User
Re: What is the value of ((64)^(1/2)))^(1/2)?  [#permalink]

Show Tags

New post 03 Jul 2018, 10:55
Bunuel wrote:
What is the value of \(\sqrt{\sqrt{64}}\)?


A. \(2\sqrt{2}\)

B. \(4\)

C. \(4\sqrt{2}\)

D. \(16\)

E. \(32\)



\(64 = 2^6\)

\(\sqrt{\sqrt{64}}=((64)^{\frac{1}{2}})^{\frac{1}{2}}=(2^{6})^{\frac{1}{4}}=(2)^{\frac{6}{4}}=(2)^{\frac{3}{2}}=\sqrt{2^{2} * 2} = 2\sqrt{2}\)

Alternative A
_________________

O SeÑoR do DESTINERO

Director
Director
User avatar
P
Joined: 31 Oct 2013
Posts: 837
Concentration: Accounting, Finance
GPA: 3.68
WE: Analyst (Accounting)
What is the value of ((64)^(1/2)))^(1/2)?  [#permalink]

Show Tags

New post 03 Jul 2018, 13:43
Bunuel wrote:
What is the value of \(\sqrt{\sqrt{64}}\)?


A. \(2\sqrt{2}\)

B. 4

C. \(4\sqrt{2}\)

D. 16

E. 32



Given,

\(\sqrt{\sqrt{64}}\)

=\(\sqrt{8}\)

=2\(\sqrt{2}\)

Note:

64 =\(8^2\)

8 = \(2^2\)*2

Thus the best answer is A.
Board of Directors
User avatar
P
Status: QA & VA Forum Moderator
Joined: 11 Jun 2011
Posts: 4271
Location: India
GPA: 3.5
WE: Business Development (Commercial Banking)
GMAT ToolKit User Premium Member CAT Tests
Re: What is the value of ((64)^(1/2)))^(1/2)?  [#permalink]

Show Tags

New post 04 Jul 2018, 07:43
Bunuel wrote:
What is the value of \(\sqrt{\sqrt{64}}\)?


A. \(2\sqrt{2}\)

B. 4

C. \(4\sqrt{2}\)

D. 16

E. 32


\(\sqrt{\sqrt{64}}\)

Or, \(\sqrt{8}\)

Or, \(2\sqrt{2}\), Answer must be (A)
_________________

Thanks and Regards

Abhishek....

PLEASE FOLLOW THE RULES FOR POSTING IN QA AND VA FORUM AND USE SEARCH FUNCTION BEFORE POSTING NEW QUESTIONS

How to use Search Function in GMAT Club | Rules for Posting in QA forum | Writing Mathematical Formulas |Rules for Posting in VA forum | Request Expert's Reply ( VA Forum Only )

GMAT Club Bot
Re: What is the value of ((64)^(1/2)))^(1/2)? &nbs [#permalink] 04 Jul 2018, 07:43
Display posts from previous: Sort by

What is the value of ((64)^(1/2)))^(1/2)?

  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®.