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# Simple DS Question- dont agree with OA

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Manager
Joined: 28 Aug 2006
Posts: 160
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Simple DS Question- dont agree with OA [#permalink]  11 Apr 2007, 19:40
00:00

Difficulty:

(N/A)

Question Stats:

0% (00:00) correct 0% (00:00) wrong based on 0 sessions
See attached DS question. I think the answer is straight B, but OA explaination says it is C. Team input please.

VJ
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Last edited by vijay2001 on 11 Apr 2007, 20:00, edited 1 time in total.
Senior Manager
Joined: 11 Feb 2007
Posts: 359
Followers: 1

Kudos [?]: 40 [0], given: 0

In (2), 1/x <1 so x> 1 yes. But x can also be negative. 1/neg. number is negative, which is less than 1. So x > 1 OR x <0.

(1) + (2), you know that x has to be positive, so x>1.

Therefore C.

Director
Joined: 26 Feb 2006
Posts: 905
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Kudos [?]: 52 [0], given: 0

Re: Simple DS Question- dont agree with OA [#permalink]  11 Apr 2007, 22:33
vijay2001 wrote:
See attached DS question. I think the answer is straight B, but OA explaination says it is C. Team input please.

VJ

this is a mostly asked crapy and trapy question.

from i, we know x is +ve.
from ii, we do not know whether x is -ve or +ve.

from i and ii, we know x is +ve but >1.
Director
Joined: 14 Jan 2007
Posts: 780
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Kudos [?]: 71 [0], given: 0

Statement1: x> 0 , This doesn't tell whether x>1. SO INSUFF

Statement2: 1/x <1>1
if x may be -ve, x <1
So INSUFF

Taking them together:
we know x is +ve from statement1, hence x will greater than 1

Hence Suff
GMAT Club Legend
Joined: 07 Jul 2004
Posts: 5078
Location: Singapore
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Kudos [?]: 184 [0], given: 0

St1:
x>0 -> could be a fraction which is less than 1. Insufficient.

St2:
If x = 2, then 1/x <1>1
If x = -1/2, then 1/x < 1. In this case, x<1.
Insufficient.

Using both:
We know x must be a positive value above 1. So answer is C.
Director
Joined: 03 Sep 2006
Posts: 885
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Re: Simple DS Question- dont agree with OA [#permalink]  12 Apr 2007, 07:37
vijay2001 wrote:
See attached DS question. I think the answer is straight B, but OA explaination says it is C. Team input please.

VJ

Try to think is X is negative. Then you don't know from statement 2 whether X>1 or not!!!

You need to be sure that X is positive!
Re: Simple DS Question- dont agree with OA   [#permalink] 12 Apr 2007, 07:37
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