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

It is currently 21 Sep 2018, 22:32

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

Divide 64*5^(1/2) by 3*5^(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: 49300
Divide 64*5^(1/2) by 3*5^(1/2).  [#permalink]

Show Tags

New post 05 Mar 2018, 00:04
00:00
A
B
C
D
E

Difficulty:

  5% (low)

Question Stats:

93% (00:19) correct 7% (00:22) wrong based on 61 sessions

HideShow timer Statistics

SVP
SVP
User avatar
P
Joined: 08 Jul 2010
Posts: 2334
Location: India
GMAT: INSIGHT
WE: Education (Education)
Reviews Badge
Re: Divide 64*5^(1/2) by 3*5^(1/2).  [#permalink]

Show Tags

New post 05 Mar 2018, 05:49
Bunuel wrote:
Divide \(6\sqrt{45}\) by \(3\sqrt{5}\).

(A) 4
(B) 6
(C) 9
(D) 15
(E) 54



\(6\sqrt{45}\) / \(3\sqrt{5}\) = \(6\sqrt{9}\sqrt{5} / 3\sqrt{5}\)

\(= 6*3 / 3 = 6\)

Answer: option B
_________________

Prosper!!!
GMATinsight
Bhoopendra Singh and Dr.Sushma Jha
e-mail: info@GMATinsight.com I Call us : +91-9999687183 / 9891333772
Online One-on-One Skype based classes and Classroom Coaching in South and West Delhi
http://www.GMATinsight.com/testimonials.html

22 ONLINE FREE (FULL LENGTH) GMAT CAT (PRACTICE TESTS) LINK COLLECTION

Board of Directors
User avatar
P
Status: QA & VA Forum Moderator
Joined: 11 Jun 2011
Posts: 4032
Location: India
GPA: 3.5
WE: Business Development (Commercial Banking)
GMAT ToolKit User Premium Member
Re: Divide 64*5^(1/2) by 3*5^(1/2).  [#permalink]

Show Tags

New post 05 Mar 2018, 06:57
Bunuel wrote:
Divide \(6\sqrt{45}\) by \(3\sqrt{5}\).

(A) 4
(B) 6
(C) 9
(D) 15
(E) 54

\(\frac{6√ 45}{3√ 5}\)

Or, \(\frac{18√5}{3√ 5}\)

Or, 6 , Answer must be (B)
_________________

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: 2835
Re: Divide 64*5^(1/2) by 3*5^(1/2).  [#permalink]

Show Tags

New post 06 Mar 2018, 11:20
Bunuel wrote:
Divide \(6\sqrt{45}\) by \(3\sqrt{5}\).

(A) 4
(B) 6
(C) 9
(D) 15
(E) 54


(6√45)/(3√5) = 2√9 = 2 x 3 = 6

Answer: B
_________________

Jeffery Miller
Head of GMAT Instruction

GMAT Quant Self-Study Course
500+ lessons 3000+ practice problems 800+ HD solutions

Director
Director
avatar
G
Joined: 21 May 2013
Posts: 648
CAT Tests
Re: Divide 64*5^(1/2) by 3*5^(1/2).  [#permalink]

Show Tags

New post 06 Mar 2018, 11:29
Bunuel wrote:
Divide \(6\sqrt{45}\) by \(3\sqrt{5}\).

(A) 4
(B) 6
(C) 9
(D) 15
(E) 54



=18\sqrt{5}/3\sqrt{5}
=6
Answer B
Senior Manager
Senior Manager
avatar
G
Joined: 15 Oct 2017
Posts: 303
Reviews Badge CAT Tests
Re: Divide 64*5^(1/2) by 3*5^(1/2).  [#permalink]

Show Tags

New post 13 Mar 2018, 10:15
1
IMO B. But the OA is E!! Can anyone explain?
Math Expert
User avatar
V
Joined: 02 Sep 2009
Posts: 49300
Re: Divide 64*5^(1/2) by 3*5^(1/2).  [#permalink]

Show Tags

New post 13 Mar 2018, 10:22
1
Re: Divide 64*5^(1/2) by 3*5^(1/2). &nbs [#permalink] 13 Mar 2018, 10:22
Display posts from previous: Sort by

Divide 64*5^(1/2) by 3*5^(1/2).

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

Events & Promotions

PREV
NEXT


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®.