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

It is currently 21 Jun 2018, 05:07

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

Events & Promotions in June
Open Detailed Calendar

√3 is what percent of √12?

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

Hide Tags

Expert Post
1 KUDOS received
Math Revolution GMAT Instructor
User avatar
D
Joined: 16 Aug 2015
Posts: 5593
GMAT 1: 800 Q59 V59
GPA: 3.82
√3 is what percent of √12? [#permalink]

Show Tags

New post 29 Mar 2017, 02:02
1
3
00:00
A
B
C
D
E

Difficulty:

  15% (low)

Question Stats:

74% (00:27) correct 26% (00:34) wrong based on 58 sessions

HideShow timer Statistics

√3 is what percent of √12?

A. 20%
B. 25%
C. 30%
D. 46%
E. 50%

_________________

MathRevolution: Finish GMAT Quant Section with 10 minutes to spare
The one-and-only World’s First Variable Approach for DS and IVY Approach for PS with ease, speed and accuracy.
"Only $99 for 3 month Online Course"
"Free Resources-30 day online access & Diagnostic Test"
"Unlimited Access to over 120 free video lessons - try it yourself"

1 KUDOS received
Senior Manager
Senior Manager
User avatar
G
Joined: 19 Apr 2016
Posts: 275
Location: India
GMAT 1: 570 Q48 V22
GMAT 2: 640 Q49 V28
GPA: 3.5
WE: Web Development (Computer Software)
√3 is what percent of √12? [#permalink]

Show Tags

New post 29 Mar 2017, 02:08
1
MathRevolution wrote:
√3 is what percent of √12?

A. 20%
B. 25%
C. 30%
D. 46%
E. 50%


√3/√12 = √3/(√3*√4) = 1/√4 = 1/2 = 50%

Hence option E is correct
Hit Kudos if you liked it 8-)
Expert Post
Math Revolution GMAT Instructor
User avatar
D
Joined: 16 Aug 2015
Posts: 5593
GMAT 1: 800 Q59 V59
GPA: 3.82
Re: √3 is what percent of √12? [#permalink]

Show Tags

New post 31 Mar 2017, 01:35
==> According to the ivy approach, you get is:”=”, what: “some”, and percent:”1/100”. Also, you substitute √12=2√3, and from √3=some(1/100)2√3, if you get rid of √3 on both sides, you get 1=(some)2/100, some=50.

The answer is E.
Answer: E
_________________

MathRevolution: Finish GMAT Quant Section with 10 minutes to spare
The one-and-only World’s First Variable Approach for DS and IVY Approach for PS with ease, speed and accuracy.
"Only $99 for 3 month Online Course"
"Free Resources-30 day online access & Diagnostic Test"
"Unlimited Access to over 120 free video lessons - try it yourself"

Senior Manager
Senior Manager
avatar
B
Joined: 06 Dec 2016
Posts: 251
Re: √3 is what percent of √12? [#permalink]

Show Tags

New post 31 Mar 2017, 12:53
My approach:

√3/√12
√3/√4 x √3
1.3/2 x 1.3
1.3/2.6
50%
SC Moderator
avatar
D
Joined: 22 May 2016
Posts: 1757
Premium Member CAT Tests
Re: √3 is what percent of √12? [#permalink]

Show Tags

New post 01 Apr 2017, 11:12
MathRevolution wrote:
√3 is what percent of √12?

A. 20%
B. 25%
C. 30%
D. 46%
E. 50%


26 seconds. Had a hunch that rationalizing denominator (getting rid of radical) would be fast. Answer: E.

\(\sqrt{3}\) / \(\sqrt{12}\)

Multiply numerator and denominator by \(\sqrt{12}\)

Numerator: \(\sqrt{3}\) * \(\sqrt{12}\) = \(\sqrt{36}\)

Denominator: \(\sqrt{12}\) * \(\sqrt{12}\) = 12

\(\sqrt{36}\) / 12 =

\(\frac{6}{12}\) = 50%
_________________

In the depths of winter, I finally learned
that within me there lay an invincible summer.

-- Albert Camus, "Return to Tipasa"

Expert Post
Target Test Prep Representative
User avatar
G
Status: Founder & CEO
Affiliations: Target Test Prep
Joined: 14 Oct 2015
Posts: 2758
Location: United States (CA)
Re: √3 is what percent of √12? [#permalink]

Show Tags

New post 04 Apr 2017, 16:14
MathRevolution wrote:
√3 is what percent of √12?

A. 20%
B. 25%
C. 30%
D. 46%
E. 50%


√3/√12 = √(3/12) = √(1/4) = 1/2 = 50%

Answer: E
_________________

Scott Woodbury-Stewart
Founder and CEO

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

Manager
Manager
avatar
S
Joined: 08 Oct 2016
Posts: 207
Location: United States
Concentration: General Management, Finance
GPA: 2.9
WE: Engineering (Telecommunications)
Re: √3 is what percent of √12? [#permalink]

Show Tags

New post 17 Apr 2017, 04:42
Very easy I did this way
√3=x/100*√12
x=√3*100/√12
multiply and divide by √12
x=√36*100/12
x=6*100/12
x=50%
_________________

Got Q42,V17
Target#01 Q45,V20--April End

Director
Director
User avatar
D
Joined: 04 Dec 2015
Posts: 700
Location: India
Concentration: Technology, Strategy
Schools: ISB '19, IIMA , IIMB, XLRI
WE: Information Technology (Consulting)
GMAT ToolKit User
Re: √3 is what percent of √12? [#permalink]

Show Tags

New post 17 May 2017, 14:45
√3 is what percent of √12?

A. 20%
B. 25%
C. 30%
D. 46%
E. 50%

\(\sqrt{3}\) = x% of \(\sqrt{{12}}\)
\(\frac{x}{100}\) * \(\sqrt{{2^2*3}}\) = \(\sqrt{3}\)
x = \(\sqrt{3}\) x 100 / 2\(\sqrt{3}\) = 50%
Answer E...

_________________
Kindly press "+1 Kudos" to appreciate :)
Re: √3 is what percent of √12?   [#permalink] 17 May 2017, 14:45
Display posts from previous: Sort by

√3 is what percent of √12?

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


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®.