It is currently 29 Jun 2017, 05:55

### 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

# x>y? (1) xy>1 (2) x/y > 1

Author Message
Director
Joined: 14 Sep 2005
Posts: 985
Location: South Korea
x>y? (1) xy>1 (2) x/y > 1 [#permalink]

### Show Tags

28 Nov 2005, 06:42
00:00

Difficulty:

(N/A)

Question Stats:

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

### HideShow timer Statistics

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

23. x>y?

(1) xy>1
(2) x/y > 1
_________________

Auge um Auge, Zahn um Zahn !

Last edited by gamjatang on 01 Dec 2005, 00:18, edited 1 time in total.
Manager
Joined: 24 Oct 2005
Posts: 169

### Show Tags

28 Nov 2005, 07:24
Let me give it a try.....

A) xy>1 => x > 1/y Not Sufficient.

B) x/y>1 => x>y Sufficient.

C
SVP
Joined: 24 Sep 2005
Posts: 1885

### Show Tags

28 Nov 2005, 07:31
positive soul wrote:
Let me give it a try.....

A) xy>1 => x > 1/y Not Sufficient.

B) x/y>1 => x>y Sufficient.

C

you forgot the case in which y is negative ..coz if it's negative, multiplying two sides of the inequality in B causes the change in direction of the inequality
SVP
Joined: 24 Sep 2005
Posts: 1885

### Show Tags

28 Nov 2005, 07:33
btw, i like Tom Hanks ...he played lively the role in Forest Gump
Director
Joined: 24 Oct 2005
Posts: 659
Location: London
Re: DS - (AG) X>Y? [#permalink]

### Show Tags

28 Nov 2005, 07:41
gamjatang wrote:
23. x>y?

(1) xy>1
(2) x/y > 1

1) xy > 1
Take two cases x = 2, y = 1 -- x > y
x = -2, y = -1 -- X < y Insuff

2) x/y > 1
Take two cases x = 2, y = 1 -- x > y
x = -2, y = -1 -- X < y Insuff

Both together, insufficient
Ans = E
VP
Joined: 30 Sep 2004
Posts: 1480
Location: Germany

### Show Tags

28 Nov 2005, 08:14

1) xy>1. not enough. x can be 4 or -4 and y can be 3 or -3. insuff

2) x/y>1 => (x-y)/y>0...x-y>0 and y>0 OR x-y<0 and y<0. insuff

1)+2) both sets (4,3) and (-4,-3) satisfy both statments...insuff
_________________

If your mind can conceive it and your heart can believe it, have faith that you can achieve it.

Manager
Joined: 24 Oct 2005
Posts: 169

### Show Tags

28 Nov 2005, 11:21
Yep...you are right.......
Director
Joined: 27 Jun 2005
Posts: 504
Location: MS

### Show Tags

28 Nov 2005, 12:15
E

23. x>y?

(1) xy>1
let x = -4 , y = -3 xy =12 > 1
let x = 4 , y = 3 xy =12 >
NS

(2) x/y > 1
let x = -6 , y = -3 x/y =2 > 1
let x = 6 , y = 3 x/y = 2 > 1

NS

taking together
let x = -6 , y = -3 x/y =2 > 1 & xy > 1
let x = 6 , y = 3 x/y = 2 > 1 & xy > 1

NS

E
28 Nov 2005, 12:15
Display posts from previous: Sort by