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# If x ? -y, is (x-y)/(x+y)>1? 1) x>0 2) y<0

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Senior Manager
Joined: 08 Jun 2004
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If x ? -y, is (x-y)/(x+y)>1? 1) x>0 2) y<0 [#permalink]

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12 May 2006, 05:08
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If x ≠ -y, is (x-y)/(x+y)>1?

1) x>0
2) y<0

Kudos [?]: 95 [0], given: 0

VP
Joined: 29 Dec 2005
Posts: 1337

Kudos [?]: 69 [0], given: 0

Re: GMATPrep DS: ... >1? [#permalink]

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12 May 2006, 06:47
M8 wrote:
If x ≠ -y, is (x-y)/(x+y)>1?

1) x>0
2) y<0

it says x-y or x+y cannot be 0.

i and ii, each, alone cannot answer the question. togather also not suff..

we know x = +ve and y = -ve.
suppose x = 5, y = -3, ok, it is true that (x-y)/(x+y)>1.
if x = 5, y = -8, ok, it is true that (x-y)/(x+y)<1.

so E.

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Director
Joined: 16 Aug 2005
Posts: 937

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Location: France

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12 May 2006, 09:59
1) Lets assume x=5 y=2, then expression >1
Or x=5 and y=7, then expression <1
Not sufficient

2) Lets assume x=5 and y= -2, then expression >1
Or x=5 and y= -7, then expression <1
Hence not sufficient either.

Combining both, not sufficient either as examples in (2) meets both requirements of (1) and (2).
Hence E

Kudos [?]: 30 [0], given: 0

12 May 2006, 09:59
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