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

 It is currently 14 Nov 2018, 05:32

### 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

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

## Events & Promotions

###### Events & Promotions in November
PrevNext
SuMoTuWeThFrSa
28293031123
45678910
11121314151617
18192021222324
2526272829301
Open Detailed Calendar
• ### Free GMAT Strategy Webinar

November 17, 2018

November 17, 2018

07:00 AM PST

09:00 AM PST

Nov. 17, 7 AM PST. Aiming to score 760+? Attend this FREE session to learn how to Define your GMAT Strategy, Create your Study Plan and Master the Core Skills to excel on the GMAT.

# If x^1/2 = 3, what is the value of x^2?

Author Message
TAGS:

### Hide Tags

SVP
Status: Preparing GMAT
Joined: 02 Nov 2016
Posts: 1805
Location: Pakistan
GPA: 3.39
If x^1/2 = 3, what is the value of x^2?  [#permalink]

### Show Tags

15 Sep 2018, 10:09
00:00

Difficulty:

15% (low)

Question Stats:

83% (00:31) correct 17% (00:30) wrong based on 29 sessions

### HideShow timer Statistics

If $$x^\frac{1}{2}$$ = 3, what is the value of $$x^2$$?

(A) 1/3
(B) 6
(C) 9
(D) 12
(E) 81

_________________

Official PS Practice Questions
Press +1 Kudos if this post is helpful

Board of Directors
Status: QA & VA Forum Moderator
Joined: 11 Jun 2011
Posts: 4206
Location: India
GPA: 3.5
Re: If x^1/2 = 3, what is the value of x^2?  [#permalink]

### Show Tags

15 Sep 2018, 10:24
If $$x^\frac{1}{2}$$ = 3, what is the value of $$x^2$$?

(A) 1/3
(B) 6
(C) 9
(D) 12
(E) 81

$$\sqrt{x} = 3$$

So, $$x = 9$$

And, $$x^2 = 81$$, Answer must be (E)
_________________

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 )

Manager
Status: Studying Quant
Joined: 04 Sep 2017
Posts: 104
GPA: 3.6
WE: Sales (Computer Software)
Re: If x^1/2 = 3, what is the value of x^2?  [#permalink]

### Show Tags

15 Sep 2018, 17:13
1
If $$x^\frac{1}{2}$$ = 3, what is the value of $$x^2$$?

(A) 1/3
(B) 6
(C) 9
(D) 12
(E) 81

$$x^\frac{1}{2}$$ = 3

Square both sides.

$$x^(\frac{1}{2})(2)$$ = $$3^2$$

x = 9

$$x^2$$ = $$9^2$$

$$x^2$$ = 81
_________________

Would I rather be feared or loved? Easy. Both. I want people to be afraid of how much they love me.

How to sort questions by Topic, Difficulty, and Source:
https://gmatclub.com/forum/search.php?view=search_tags

Re: If x^1/2 = 3, what is the value of x^2? &nbs [#permalink] 15 Sep 2018, 17:13
Display posts from previous: Sort by