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

 It is currently 14 Aug 2018, 18:33

### 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 x+y+z a square of an integer? 1). Xyz (or x, y, and z) is

Author Message
Manager
Joined: 04 Sep 2006
Posts: 113
Is x+y+z a square of an integer? 1). Xyz (or x, y, and z) is  [#permalink]

### Show Tags

31 May 2009, 06:10
00:00

Difficulty:

(N/A)

Question Stats:

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

### HideShow timer Statistics

Is x+y+z a square of an integer?
1). Xyz (or x, y, and z) is odd, and x is the least one.
2). X, y, and z are three different integers.

--== Message from GMAT Club Team ==--

This is not a quality discussion. It has been retired.

If you would like to discuss this question please re-post it in the respective forum. Thank you!

To review the GMAT Club's Forums Posting Guidelines, please follow these links: Quantitative | Verbal Please note - we may remove posts that do not follow our posting guidelines. Thank you.
Manager
Joined: 28 Jan 2004
Posts: 198
Location: India
Re: square of an integer  [#permalink]

### Show Tags

31 May 2009, 09:58
E....not enough info.
Pluggin numbers can easily show different outcomes.

Stmt. 1 --- tell all 3 are odd. Not suff.
Stmt 2 --- does not tells much.
Combining both - does not helps.
what is OA?
Manager
Joined: 08 Feb 2009
Posts: 139
Schools: Anderson
Re: square of an integer  [#permalink]

### Show Tags

31 May 2009, 10:00
Even after Combining both the statements, we only that there are three odd integers.

x = 1, y = 5, z = 3 $$\Rightarrow$$ the SUM is Square of an integer.
x = 3, y = 5, z = 7 $$\Rightarrow$$ the SUM is NOT Square of an integer.

Thus, both statements are INSUFFICIENT.

Senior Manager
Joined: 16 Jan 2009
Posts: 339
Concentration: Technology, Marketing
GMAT 1: 700 Q50 V34
GPA: 3
WE: Sales (Telecommunications)
Re: square of an integer  [#permalink]

### Show Tags

01 Jun 2009, 15:55
vcbabu wrote:
Is x+y+z a square of an integer?
1). Xyz (or x, y, and z) is odd, and x is the least one.
2). X, y, and z are three different integers.

Stmt 1: x, y, and z is odd, and x is the least one.

for x=3 y=3 z=3 x+y+z is a square of an integer
for x=1 y=3 z=7 x+y+z is not a square of an integer.

Stmt 1 INSUFFICIENT.

Stmt 2: X, y, and z are three different integers.

for x=1 y=3 z=5 x+y+z is a square of an integer.
for x=1 y=3 z=7 x+y+z is not a square of an integer.

Stmt 2 INSUFFICIENT.

Together , using diffenet , odd integers for x, y, and z is odd, and x is the least one.

for x=1 y=3 z=5 x+y+z is a square of an integer.
for x=1 y=3 z=7 x+y+z is not a square of an integer.

IMO E
_________________

Lahoosaher

Manager
Joined: 14 May 2009
Posts: 187
Re: square of an integer  [#permalink]

### Show Tags

01 Jun 2009, 21:07
vcbabu wrote:
Is x+y+z a square of an integer?
1). Xyz (or x, y, and z) is odd, and x is the least one.
2). X, y, and z are three different integers.

Question:$$(X+Y+Z=M^{2}$$ where M is any integer?$$)$$

Question:$$(sqrt{X+Y+Z}=M$$ where M is any integer?$$)$$

$$X=1$$, $$Y=3$$, $$Z=5$$

$$X+Y+Z=9=3^2$$

==>YES

$$X=1$$, $$Y=3$$, $$Z=7$$

$$X+Y+Z=11$$

==> NO

YES & NO==>INSUFFICIENT

Final Answer, $$E$$.

--== Message from GMAT Club Team ==--

This is not a quality discussion. It has been retired.

If you would like to discuss this question please re-post it in the respective forum. Thank you!

To review the GMAT Club's Forums Posting Guidelines, please follow these links: Quantitative | Verbal Please note - we may remove posts that do not follow our posting guidelines. Thank you.

_________________

Re: square of an integer &nbs [#permalink] 01 Jun 2009, 21:07
Display posts from previous: Sort by

# Events & Promotions

 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®.