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

 It is currently 22 Oct 2018, 12:39

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

Is y^2 = 0?

Author Message
TAGS:

Hide Tags

Math Expert
Joined: 02 Sep 2009
Posts: 50042

Show Tags

11 Nov 2017, 09:34
00:00

Difficulty:

25% (medium)

Question Stats:

96% (00:23) correct 4% (00:47) wrong based on 46 sessions

HideShow timer Statistics

Is y^2 = 0?

(1) 3y = 0

(2) y^3 = 0

_________________
Manager
Joined: 21 Oct 2017
Posts: 74
Location: France
Concentration: Entrepreneurship, Technology
GMAT 1: 750 Q48 V44
GPA: 4
WE: Project Management (Internet and New Media)
Re: Is y^2 = 0?  [#permalink]

Show Tags

11 Nov 2017, 15:15
If y^2 = 0, then y must be = 0. So the question is asking us whether y = 0 or not.

STATEMENT 1
3y = 0 ==> y = 0 ==> sufficient

STATEMENT 2
y^3 = 0 ==> y = 0 ==> sufficient

_________________

Please Press +1 Kudos if it helps!

October 9th, 2017: Diagnostic Exam - Admit Master (GoGMAT) - 640
November 11th, 2017: CAT 1 - Admit Master (GoGMAT) - 700
November 20th, 2017: CAT 2 - GMATPrep - 700 (Q: 47, V: 40)
November 25th, 2017: CAT 3 - Admit Master (GoGMAT) - 710 (Q: 48, V: 40)
November 27th, 2017: CAT 4 - GMATPrep - 720 (Q: 49, V: 40)

December 4th, 2017: GMAT Exam - 750 (Q: 48, V: 44, IR: 8, AWA: 6)

Re: Is y^2 = 0? &nbs [#permalink] 11 Nov 2017, 15:15
Display posts from previous: Sort by