Summer is Coming! Join the Game of Timers Competition to Win Epic Prizes. Registration is Open. Game starts Mon July 1st.

It is currently 17 Jul 2019, 19:45

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

What is the difference between 150^(1/2) and 54^(1/2)

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

Hide Tags

Find Similar Topics 
Math Expert
User avatar
V
Joined: 02 Sep 2009
Posts: 56277
What is the difference between 150^(1/2) and 54^(1/2)  [#permalink]

Show Tags

New post 04 Mar 2018, 23:10
00:00
A
B
C
D
E

Difficulty:

  15% (low)

Question Stats:

86% (00:50) correct 14% (01:46) wrong based on 47 sessions

HideShow timer Statistics


Math Expert
User avatar
V
Joined: 02 Sep 2009
Posts: 56277
Re: What is the difference between 150^(1/2) and 54^(1/2)  [#permalink]

Show Tags

New post 04 Mar 2018, 23:50
Bunuel wrote:
What is the difference between \(\sqrt{150}\) and \(\sqrt{54}\)

(A) \(2\sqrt{6}\)

(B) \(16\sqrt{6}\)

(C) \(\sqrt{96}\)

(D) \(6\sqrt{2}\)

(E) \(8\sqrt{6}\)


8. Exponents and Roots of Numbers



Check below for more:
ALL YOU NEED FOR QUANT ! ! !
Ultimate GMAT Quantitative Megathread
_________________
Director
Director
avatar
P
Joined: 21 May 2013
Posts: 655
Re: What is the difference between 150^(1/2) and 54^(1/2)  [#permalink]

Show Tags

New post 05 Mar 2018, 04:12
Bunuel wrote:
What is the difference between \(\sqrt{150}\) and \(\sqrt{54}\)

(A) \(2\sqrt{6}\)

(B) \(16\sqrt{6}\)

(C) \(\sqrt{96}\)

(D) \(6\sqrt{2}\)

(E) \(8\sqrt{6}\)



=5\sqrt{6}-3\sqrt{6}
=2\sqrt{6}
Answer A
Board of Directors
User avatar
P
Status: QA & VA Forum Moderator
Joined: 11 Jun 2011
Posts: 4512
Location: India
GPA: 3.5
WE: Business Development (Commercial Banking)
GMAT ToolKit User
What is the difference between 150^(1/2) and 54^(1/2)  [#permalink]

Show Tags

New post 05 Mar 2018, 07:01
Bunuel wrote:
What is the difference between \(\sqrt{150}\) and \(\sqrt{54}\)

(A) \(2\sqrt{6}\)

(B) \(16\sqrt{6}\)

(C) \(\sqrt{96}\)

(D) \(6\sqrt{2}\)

(E) \(8\sqrt{6}\)


\(\sqrt{150} - \sqrt{54}\)

= \(\sqrt{5^2*3*2} - \sqrt{2*3^3}\)

= \(5\sqrt{6} - 3\sqrt{6}\)

= \(2\sqrt{6}\), 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 )
Target Test Prep Representative
User avatar
G
Status: Head GMAT Instructor
Affiliations: Target Test Prep
Joined: 04 Mar 2011
Posts: 2823
Re: What is the difference between 150^(1/2) and 54^(1/2)  [#permalink]

Show Tags

New post 06 Mar 2018, 11:19
Bunuel wrote:
What is the difference between \(\sqrt{150}\) and \(\sqrt{54}\)

(A) \(2\sqrt{6}\)

(B) \(16\sqrt{6}\)

(C) \(\sqrt{96}\)

(D) \(6\sqrt{2}\)

(E) \(8\sqrt{6}\)



We need to determine √150 - √54:

√150 - √54 = √25 x √6 - √9 x √6

5√6 - 3√6 = 2√6

Answer: A
_________________

Jeffrey Miller

Head of GMAT Instruction

Jeff@TargetTestPrep.com
TTP - Target Test Prep Logo
122 Reviews

5-star rated online GMAT quant
self study course

See why Target Test Prep is the top rated GMAT quant course on GMAT Club. Read Our Reviews

If you find one of my posts helpful, please take a moment to click on the "Kudos" button.

GMAT Club Bot
Re: What is the difference between 150^(1/2) and 54^(1/2)   [#permalink] 06 Mar 2018, 11:19
Display posts from previous: Sort by

What is the difference between 150^(1/2) and 54^(1/2)

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





Powered by phpBB © phpBB Group | Emoji artwork provided by EmojiOne