Find all School-related info fast with the new School-Specific MBA Forum

 It is currently 01 Jul 2016, 07:04

### 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

# If x is not equal to -y, is (x-y)/(x+y) > 1?

Author Message
Senior Manager
Joined: 20 Feb 2007
Posts: 257
Followers: 1

Kudos [?]: 32 [0], given: 0

If x is not equal to -y, is (x-y)/(x+y) > 1? [#permalink]

### Show Tags

03 Apr 2007, 04:16
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.

Q: If x is not equal to -y, is (x-y)/(x+y) > 1?

(1) x > 0
(2) y < 0

I could solve it by picking numbers but it was time-consuming. Could any one please solve it without picking numbers and explain here?

Thanks!

OA: E
Manager
Joined: 28 Dec 2006
Posts: 61
Followers: 1

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

### Show Tags

03 Apr 2007, 04:49
I actually get (C). Can you please explain the OA?
Senior Manager
Joined: 20 Feb 2007
Posts: 257
Followers: 1

Kudos [?]: 32 [0], given: 0

### Show Tags

03 Apr 2007, 04:56
Sure!

(1) x = 4 and y = -3
(x-y)/(x+y) = 7 which is > 1

But if x = 4 and y = 0
(x-y)/(x+y) = 4 which is = 1 INSUFF

(2) x = 4 and y = -3
(x-y)/(x+y) = 7 which is > 1

But if x = 0 and y = -3
(x-y)/(x+y) = -1 which is < 1 INSUFF

Taking (1) and (2) together:
If x = 4 and y = -3
(x-y)/(x+y) = 7 which is > 1

But if x = 2 and y = -3
(x-y)/(x+y) = -5 which is < 1 INSUFF
GMAT Club Legend
Joined: 07 Jul 2004
Posts: 5062
Location: Singapore
Followers: 29

Kudos [?]: 282 [0], given: 0

### Show Tags

03 Apr 2007, 05:57
St1.

we have no information about y. if y is larger than x, then (x-y) is going to be negative and (x-y)/(x+y) <1> 1

St2:

same argument above.

St1 and St2:

x > 0 and y <0> 1.
If x = 3, y = -5, then (x-y)/(x+y) < 1.

So still inconclusive.

E
GMAT Club Legend
Joined: 07 Jul 2004
Posts: 5062
Location: Singapore
Followers: 29

Kudos [?]: 282 [0], given: 0

### Show Tags

03 Apr 2007, 06:00
I don't know why my answer turned out that way in the post. I swear it was correct while i typed but it turned out otherwise.

Anyway, for the last part,

if x = 100, and y = -1/4, then (x-y)/(x+y) will be greater than 1.

if x = 1/4 and y = -100, then (x-y)/(x+y) will be less than 1.

So ans is E.
Senior Manager
Joined: 20 Feb 2007
Posts: 257
Followers: 1

Kudos [?]: 32 [0], given: 0

### Show Tags

03 Apr 2007, 18:51
ywilfred, I was also facing the same problem...Fig suggested me the solution and it really worked!

When you write your message in the message body, check the button Disable HTML in this post in the Options just below the message body. Then it will be fine
Display posts from previous: Sort by