BREAKING: Target Test Prep releases Brand New 2026 On Demand GMAT prep course

Redeem

OG problem - DS

This topic has expert replies
Post new topic Post Reply
Previous Topic Next Topic
Source: — Data Sufficiency |
User avatar
Master | Next Rank: 500 Posts
Posts: 422
Joined: Mon Aug 09, 2010 11:47 am
Thanked: 22 times
Followed by:1 members
GMAT Score:680

by beatthegmatinsept » Tue Sep 21, 2010 6:25 am
nehs wrote:If x not eq to -y,
is x-y/x+y >1?

1.x>0
2.y<0

Can anyone help me with this one? I chose B
IMO E.
Being defeated is often only a temporary condition. Giving up is what makes it permanent.
Top
Master | Next Rank: 500 Posts
Posts: 169
Joined: Tue Aug 24, 2010 2:15 pm
Thanked: 1 times

by nehs » Tue Sep 21, 2010 6:36 am
thanks, the OG mentions E too. But, I thought we could cross - multiply the quest(x-y)/(x+y)>1 and then x eventually cancels out. This means the value of y in st. 2 is suffcient and that's how I chose B.

Do you mean to say that we can not simplify the question the way I did?
Top
User avatar
Master | Next Rank: 500 Posts
Posts: 422
Joined: Mon Aug 09, 2010 11:47 am
Thanked: 22 times
Followed by:1 members
GMAT Score:680

by beatthegmatinsept » Tue Sep 21, 2010 6:41 am
nehs wrote:thanks, the OG mentions E too. But, I thought we could cross - multiply the quest(x-y)/(x+y)>1 and then x eventually cancels out. This means the value of y in st. 2 is suffcient and that's how I chose B.

Do you mean to say that we can not simplify the question the way I did?
When you cancel out x from each side, you get -y>y. This means y<0. So without even looking at b, you know y is negative. So B provides you with no new information. You already know a is not enough I assume.
Together a and b can give you different answers. Hence, E.
Being defeated is often only a temporary condition. Giving up is what makes it permanent.
Top
Master | Next Rank: 500 Posts
Posts: 169
Joined: Tue Aug 24, 2010 2:15 pm
Thanked: 1 times

by nehs » Tue Sep 21, 2010 7:43 am
I got it now. Thank You :-)
All the best for your GMAT - saturday? :mrgreen:
Top
User avatar
Master | Next Rank: 500 Posts
Posts: 422
Joined: Mon Aug 09, 2010 11:47 am
Thanked: 22 times
Followed by:1 members
GMAT Score:680

by beatthegmatinsept » Tue Sep 21, 2010 8:26 am
nehs wrote:I got it now. Thank You :-)
All the best for your GMAT - saturday? :mrgreen:
Glad it helped :)
Thanks buddy.. Good Luck to you too!! :) 4 more days to study this year ;)
Being defeated is often only a temporary condition. Giving up is what makes it permanent.
Top
Post new topic Post Reply
• Page 1 of 1