It is currently 22 Jun 2017, 07:27

### 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 June
Open Detailed Calendar

# What is the value of y? (1) 3|x^2 4| = y 2 (2) |3 y| = 11

Author Message
SVP
Joined: 29 Aug 2007
Posts: 2473
What is the value of y? (1) 3|x^2 4| = y 2 (2) |3 y| = 11 [#permalink]

### Show Tags

11 Dec 2008, 15:33
00:00

Difficulty:

(N/A)

Question Stats:

0% (00:00) correct 0% (00:00) wrong based on 1 sessions

### HideShow timer Statistics

This topic is locked. If you want to discuss this question please re-post it in the respective forum.

What is the value of y?

(1) 3|x^2 – 4| = y – 2
(2) |3 – y| = 11
_________________

Gmat: http://gmatclub.com/forum/everything-you-need-to-prepare-for-the-gmat-revised-77983.html

GT

Senior Manager
Joined: 21 Apr 2008
Posts: 269
Location: Motortown

### Show Tags

11 Dec 2008, 17:37
C
stmt1 : what is x ? - In Suff
stmt2: y could be -8 or 14 - In Suff

Together

3|x^2 - 4| can't be negative, so y = 14 - Suff
Current Student
Joined: 28 Dec 2004
Posts: 3357
Location: New York City
Schools: Wharton'11 HBS'12

### Show Tags

11 Dec 2008, 21:37
even i got this one wrong on mgmat..

and its soo simple..

hey what do you think about mgmat math cat ? do you think they are representitive of the real gmat?
Manager
Joined: 27 May 2008
Posts: 199

### Show Tags

11 Dec 2008, 23:54
Can it be A

3|x^2 – 4| = y – 2 can be written as

3(x^2 – 4) = y – 2 ---------(1)
3(x^2 – 4) = -y + 2 --------(2)

from 1 and 2,

y == 2.

Stm2: y could be -8 or 14 - In Suff

Senior Manager
Joined: 21 Apr 2008
Posts: 269
Location: Motortown

### Show Tags

12 Dec 2008, 15:25
fresinha12 wrote:
even i got this one wrong on mgmat..

and its soo simple..

hey what do you think about mgmat math cat ? do you think they are representitive of the real gmat?

I havn't given all the MGMAT tests yet. I am planning to do that next week.
Has anyone got any insight into this ? I am curious to know too...
SVP
Joined: 17 Jun 2008
Posts: 1549

### Show Tags

12 Dec 2008, 23:20
selvae wrote:
Can it be A

3|x^2 – 4| = y – 2 can be written as

3(x^2 – 4) = y – 2 ---------(1)
3(x^2 – 4) = -y + 2 --------(2)

from 1 and 2,

y == 2.

Stm2: y could be -8 or 14 - In Suff

Here equating the two equations will not help as these two equations are for two different conditions.

If you look at stmt1, left side is >=0. Hence, for the right side to be >=0, y >=2 and there is no single value of y. Hence, stmt1 is insufficient.
Re: DS: Y?   [#permalink] 12 Dec 2008, 23:20
Display posts from previous: Sort by