It is currently 23 Nov 2017, 12:04

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

Events & Promotions

Events & Promotions in June
Open Detailed Calendar

x y z are Three integers is x>y>z? 1)

  post reply Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
Intern
Intern
avatar
Joined: 18 Apr 2006
Posts: 7

Kudos [?]: [0], given: 0

x y z are Three integers is x>y>z? 1) [#permalink]

Show Tags

New post 16 Sep 2007, 18:24
This topic is locked. If you want to discuss this question please re-post it in the respective forum.

x y z are Three integers is x>y>z?


1) |z-x|=|z-y|+|y-z|


2) z>x

Kudos [?]: [0], given: 0

Director
Director
User avatar
Joined: 03 May 2007
Posts: 867

Kudos [?]: 271 [0], given: 7

Schools: University of Chicago, Wharton School
Re: x y z are Three integers is x>y>z? [#permalink]

Show Tags

New post 16 Sep 2007, 19:37
studentnow wrote:
x y z are Three integers is x>y>z?

1) |z-x|=|z-y|+|y-z|
2) z>x


should be B. if z > x, then definitely x>y>z.

Kudos [?]: 271 [0], given: 7

Director
Director
avatar
Joined: 17 Sep 2005
Posts: 901

Kudos [?]: 118 [0], given: 0

Re: x y z are Three integers is x>y>z? [#permalink]

Show Tags

New post 16 Sep 2007, 19:40
Fistail wrote:
studentnow wrote:
x y z are Three integers is x>y>z?

1) |z-x|=|z-y|+|y-z|
2) z>x


should be B. if z > x, then definitely x>y>z.


How?

If Z > X then how would X > Y > Z ?

- Brajesh

Kudos [?]: 118 [0], given: 0

GMAT Club Legend
GMAT Club Legend
User avatar
Joined: 07 Jul 2004
Posts: 5032

Kudos [?]: 453 [0], given: 0

Location: Singapore
 [#permalink]

Show Tags

New post 16 Sep 2007, 20:17
If z = x+2, y = x+1, then

St1:
|z-x| = |z-y| + |y-z|
|x+2-x| = |x+2-x-1| - |x+1-x-2|
|2| = |1| + |1|

If z = x-2, y = x-1, then
|z-x| = |z-y| + |y-z|
|x-2-x| = |x-2-x+1| + |x-1-x+2|
|-2| = |-1| + |-1|

So can be x > y > z, or x < y <z>x. Nothing else about y. x could be = y, or <y> y. Insufficient.

St1 & St2:
z = x+2, y = x+1, then |z-x| = |z-y| + |y-z| ( x < y < z)
Only x<y<z yields a solution that fit st1 and st2. The rest do not yield such a solution.

Ans C

Kudos [?]: 453 [0], given: 0

Director
Director
User avatar
Joined: 03 May 2007
Posts: 867

Kudos [?]: 271 [0], given: 7

Schools: University of Chicago, Wharton School
Re: x y z are Three integers is x>y>z? [#permalink]

Show Tags

New post 16 Sep 2007, 22:11
b14kumar wrote:
Fistail wrote:
studentnow wrote:
x y z are Three integers is x>y>z?

1) |z-x|=|z-y|+|y-z|
2) z>x


should be B. if z > x, then definitely x>y>z.


How?

If Z > X then how would X > Y > Z ?

- Brajesh


if z>x, then x cannot be grater than z. so suff...

do not need st. 1.

Kudos [?]: 271 [0], given: 7

Director
Director
avatar
Joined: 17 Sep 2005
Posts: 901

Kudos [?]: 118 [0], given: 0

Re: x y z are Three integers is x>y>z? [#permalink]

Show Tags

New post 16 Sep 2007, 22:17
Fistail wrote:
b14kumar wrote:
Fistail wrote:
studentnow wrote:
x y z are Three integers is x>y>z?

1) |z-x|=|z-y|+|y-z|
2) z>x


should be B. if z > x, then definitely x>y>z.


How?

If Z > X then how would X > Y > Z ?

- Brajesh


if z>x, then x cannot be grater than z. so suff...

do not need st. 1.


You said:

if z > x, then definitely x>y>z

I thought you were saying that if z > x then x>y>z would be true.
However, I think you meant to say that x>y>z would not be true....ST2 is sufficient to answer the question.....That is what you meant...Right?

- Brajesh

Kudos [?]: 118 [0], given: 0

CEO
CEO
User avatar
Joined: 29 Mar 2007
Posts: 2553

Kudos [?]: 528 [0], given: 0

Re: x y z are Three integers is x>y>z? [#permalink]

Show Tags

New post 16 Sep 2007, 23:55
studentnow wrote:
x y z are Three integers is x>y>z?


1) |z-x|=|z-y|+|y-z|


2) z>x


I get D.

Start w/ S2. S1 looks ugly.

z>x, well then x>y>z can't be true.


S1.
z-x=z-y+y-z---> z-x=0. z has to equal x.

-z+x=-z+y -y+z. -z+x=0---> x-z=0 x=z.

Kudos [?]: 528 [0], given: 0

Senior Manager
Senior Manager
User avatar
Joined: 13 Mar 2007
Posts: 293

Kudos [?]: 58 [0], given: 0

Location: Russia, Moscow
Re: x y z are Three integers is x>y>z? [#permalink]

Show Tags

New post 17 Sep 2007, 03:08
[quote="studentnow"]x y z are Three integers is x>y>z?


1) |z-x|=|z-y|+|y-z|


2) z>x[/quote]

I think it is E

1) |z-x|=|z-y|+|y-z| => |z-x|=|z-y|+|z-y|=2|z-y|=>there are many combinations=>insufficient
2) z>x=>insufficient
1&2) z-x=2|z-y|=> a) z-x=2z-2y=>x=2y-z or b) x-z=2z-2y=>x=z-2y we have at least two combinations=> so insufficient

Changed my opinion to B

Last edited by Vlad77 on 17 Sep 2007, 04:50, edited 1 time in total.

Kudos [?]: 58 [0], given: 0

Director
Director
User avatar
Joined: 14 Jan 2007
Posts: 775

Kudos [?]: 179 [0], given: 0

 [#permalink]

Show Tags

New post 17 Sep 2007, 04:18
Should be 'B'

stmt1: INSUFF
take x =5 , y =3, z =1 satisfies stmt1
x=-3 , y =3, z=1 also satisfies stmt1

Stmt2; suff
as Z>x, this means that x>y>z can never be true.

Kudos [?]: 179 [0], given: 0

Manager
Manager
avatar
Joined: 20 Dec 2004
Posts: 177

Kudos [?]: 18 [0], given: 0

 [#permalink]

Show Tags

New post 17 Sep 2007, 04:38
I will go with B as well. What is the OA.
_________________

Regards

Subhen

Kudos [?]: 18 [0], given: 0

CEO
CEO
User avatar
Joined: 29 Mar 2007
Posts: 2553

Kudos [?]: 528 [0], given: 0

 [#permalink]

Show Tags

New post 17 Sep 2007, 09:50
vshaunak@gmail.com wrote:
Should be 'B'

stmt1: INSUFF
take x =5 , y =3, z =1 satisfies stmt1
x=-3 , y =3, z=1 also satisfies stmt1

Stmt2; suff
as Z>x, this means that x>y>z can never be true.



oops ya change to B from D

Kudos [?]: 528 [0], given: 0

Director
Director
User avatar
Joined: 03 May 2007
Posts: 867

Kudos [?]: 271 [0], given: 7

Schools: University of Chicago, Wharton School
Re: x y z are Three integers is x>y>z? [#permalink]

Show Tags

New post 17 Sep 2007, 10:43
b14kumar wrote:
Fistail wrote:
b14kumar wrote:
Fistail wrote:
studentnow wrote:
x y z are Three integers is x>y>z?

1) |z-x|=|z-y|+|y-z|
2) z>x


should be B. if z > x, then definitely x>y>z.


How?

If Z > X then how would X > Y > Z ?

- Brajesh


if z>x, then x cannot be grater than z. so suff...

do not need st. 1.


You said:

if z > x, then definitely x>y>z

I thought you were saying that if z > x then x>y>z would be true.
However, I think you meant to say that x>y>z would not be true....ST2 is sufficient to answer the question.....That is what you meant...Right?

- Brajesh


thats absolutely right.

Kudos [?]: 271 [0], given: 7

Re: x y z are Three integers is x>y>z?   [#permalink] 17 Sep 2007, 10:43
Display posts from previous: Sort by

x y z are Three integers is x>y>z? 1)

  post reply Question banks Downloads My Bookmarks Reviews Important topics  

Moderator: chetan2u



GMAT Club MBA Forum Home| About| Terms and Conditions| GMAT Club Rules| Contact| Sitemap

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®.