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

It is currently 13 Dec 2019, 22:42

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

If x#y is defined to equal x^2/y for all x and y, then (-1#2)#3 =

  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: 59721
If x#y is defined to equal x^2/y for all x and y, then (-1#2)#3 =  [#permalink]

Show Tags

New post 08 May 2015, 06:33
00:00
A
B
C
D
E

Difficulty:

  5% (low)

Question Stats:

91% (00:53) correct 9% (01:42) wrong based on 108 sessions

HideShow timer Statistics

Intern
Intern
avatar
Joined: 09 Jan 2015
Posts: 8
Re: If x#y is defined to equal x^2/y for all x and y, then (-1#2)#3 =  [#permalink]

Show Tags

New post 08 May 2015, 10:52
(-1)^2 / 2 = 1/2
(1/2)^2 / 3 = 1/12
so C is my answer
Current Student
avatar
Joined: 24 Mar 2015
Posts: 35
Concentration: General Management, Marketing
GMAT 1: 660 Q44 V38
GPA: 3.21
WE: Science (Pharmaceuticals and Biotech)
Re: If x#y is defined to equal x^2/y for all x and y, then (-1#2)#3 =  [#permalink]

Show Tags

New post 08 May 2015, 13:25
1
Bunuel wrote:
If x#y is defined to equal x^2/y for all x and y, then (-1#2)#3 =

(A) 4/3
(B) 1/3
(C) 1/12
(D) -1/12
(E) -4/3

Kudos for a correct solution.


Working inside to out:
(-1)^2/2= 1/2
gives us: (1/2)#3
(1/2)^2/3 = (1/4)(1/3) = 1/12 answer choice C.
Manager
Manager
avatar
Joined: 09 Jan 2013
Posts: 68
Concentration: Entrepreneurship, Sustainability
GMAT 1: 650 Q45 V34
GMAT 2: 740 Q51 V39
GRE 1: Q790 V650
GPA: 3.76
WE: Other (Pharmaceuticals and Biotech)
Reviews Badge
Re: If x#y is defined to equal x^2/y for all x and y, then (-1#2)#3 =  [#permalink]

Show Tags

New post 09 May 2015, 02:46
1
Since you always solve the part in brackets
\(-1#2 = (-1)^2/2= 1/2\)
Thus,
\((1/2)#3 = (1/2)^2/3 = (1/4)(1/3) = 1/12\)

Answer C
Director
Director
avatar
P
Joined: 21 May 2013
Posts: 633
Re: If x#y is defined to equal x^2/y for all x and y, then (-1#2)#3 =  [#permalink]

Show Tags

New post 09 May 2015, 09:33
1
Bunuel wrote:
If x#y is defined to equal x^2/y for all x and y, then (-1#2)#3 =

(A) 4/3
(B) 1/3
(C) 1/12
(D) -1/12
(E) -4/3

Kudos for a correct solution.


(-1#2)=-1^2/2=1/2
And, (1/2)#3=1/4/3=1/4*1/3=1/12
Answer C
GMAT Club Bot
Re: If x#y is defined to equal x^2/y for all x and y, then (-1#2)#3 =   [#permalink] 09 May 2015, 09:33
Display posts from previous: Sort by

If x#y is defined to equal x^2/y for all x and y, then (-1#2)#3 =

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





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