if x and y are both integers and x>y, is x positive? 1)

Oldest

Best Reply

Author

Message

TAGS:

Senior Manager

Joined: 17 Jul 2007

Posts: 290

Location: The 408

Followers: 3

Kudos [?]: 2 [0], given: 0

if x and y are both integers and x>y, is x positive? 1) [#permalink]

27 Jul 2007, 18:56

00:00

Question Stats:

0% (00:00) correct

0% (00:00) wrong

based on 0 sessions

if x and y are both integers and x>y, is x positive?

1) y<0
2) 2x+y+4>x+y+4

I get how 1 is Insufficient, but not grasping 2.

Last edited by zakk on 28 Jul 2007, 08:40, edited 2 times in total.

Senior Manager

Joined: 04 Jun 2007

Posts: 357

Followers: 1

Kudos [?]: 9 [0], given: 0

Re: DS: Easy problem [#permalink]

27 Jul 2007, 23:44

zakk wrote:

if x and y are both integers and x>y, is x positive?

1) y<0>x+y+4

I get how 1 is Insufficient, but not grasping 2.

Problem with HTML I think. Please repost after disabling HTML.

Senior Manager

Joined: 04 Jun 2007

Posts: 357

Followers: 1

Kudos [?]: 9 [0], given: 0

Re: DS: Easy problem [#permalink]

28 Jul 2007, 09:01

zakk wrote:

if x and y are both integers and x>y, is x positive?

1) y<0
2) 2x+y+4>x+y+4

I get how 1 is Insufficient, but not grasping 2.

I think statement 2 is also insufficient.
2x+y+4 > x+y+4
can be written as
x + (x+y+4) > (x+y+4)

If (x+y+4) > 0, then x > 0.
But, if (x+y+4) < 0, then x > 0 or x <0.

Director

Joined: 26 Feb 2006

Posts: 919

Followers: 3

Kudos [?]: 28 [0], given: 0

Re: DS: Easy problem [#permalink]

28 Jul 2007, 09:12

sumande wrote:

zakk wrote:

if x and y are both integers and x>y, is x positive?

1) y<0
2) 2x+y+4>x+y+4

I get how 1 is Insufficient, but not grasping 2.

I think statement 2 is also insufficient.
2x+y+4 > x+y+4
can be written as
x + (x+y+4) > (x+y+4)

If (x+y+4) > 0, then x > 0.
But, if (x+y+4) < 0, then x > 0 or x <0.

B. st 2 should be sufficient:

2x + y + 4 > x + y + 4
2x > x
2x - x > 0
x > 0

Senior Manager

Joined: 04 Jun 2007

Posts: 357

Followers: 1

Kudos [?]: 9 [0], given: 0

Re: DS: Easy problem [#permalink]

28 Jul 2007, 10:31

Himalayan wrote:

sumande wrote:

zakk wrote:

if x and y are both integers and x>y, is x positive?

1) y<0
2) 2x+y+4>x+y+4

I get how 1 is Insufficient, but not grasping 2.

I think statement 2 is also insufficient.
2x+y+4 > x+y+4
can be written as
x + (x+y+4) > (x+y+4)

If (x+y+4) > 0, then x > 0.
But, if (x+y+4) < 0, then x > 0 or x <0.

B. st 2 should be sufficient:

2x + y + 4 > x + y + 4
2x > x
2x - x > 0
x > 0

You are right. I don't know what I was thinking. :oops:

Re: DS: Easy problem [#permalink] 28 Jul 2007, 10:31

	Similar topics	Author	Replies	Last post
Similar Topics:	Are x and y both positive?	macca	6	21 May 2006, 11:48
	If x and y are positive, is x^3>y? (1) sqrt x > y (2)	TeHCM	4	22 May 2006, 23:07
	Are x and y both positive?	gidimba	30	08 Jun 2006, 18:24
	IF x and y are positive is x^3>y? 1) squareroot of x >	apollo168	2	21 Aug 2006, 23:26
	are x and y both positive?	dmittal	5	09 Jul 2007, 11:24

if x and y are both integers and x>y, is x positive? 1)

Main navigation

GMAT Resources

Partners

MBA Resources

GMAT ® is a registered trademark of the Graduate Management Admission Council ® (GMAC ®). GMAT Club's website has not been reviewed or endorsed by GMAC.

GMAT Courses

Admissions Consulting

if x and y are both integers and x>y, is x positive? 1)

if x and y are both integers and x>y, is x positive? 1)

Main navigation

GMAT Resources

Partners

MBA Resources