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number properties ques

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number properties ques

by nitug » Sat Aug 30, 2008 12:13 pm
hi frnds,

i got this one wrong, still cant figure out the reason, plz help..!!


What is the product of a certain pair of consecutive odd integers?
1. Exactly one of the integers is negative
2. At least one of the integers is positive


• Statement (1) ALONE is sufficient, but Statement (2) ALONE is not sufficient
• Statement (2) ALONE is sufficient, but Statement (1) ALONE is not sufficient
• BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient
• EACH statement ALONE is sufficient
• Statements (1) and (2) TOGETHER are NOT sufficient


what should be the ans??




Thanks,
Nitug
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Re: number properties ques

by sudhir3127 » Sat Aug 30, 2008 1:16 pm
nitug wrote:hi frnds,

i got this one wrong, still cant figure out the reason, plz help..!!


What is the product of a certain pair of consecutive odd integers?
1. Exactly one of the integers is negative
2. At least one of the integers is positive


• Statement (1) ALONE is sufficient, but Statement (2) ALONE is not sufficient
• Statement (2) ALONE is sufficient, but Statement (1) ALONE is not sufficient
• BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient
• EACH statement ALONE is sufficient
• Statements (1) and (2) TOGETHER are NOT sufficient


what should be the ans??




Thanks,
Nitug
I think E ..

R u sure the Question stem/ Answers states only this much ,...

If the question is asking u abt the value i dont think its possible,,
can i know the source of the Question.
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by sethids » Sat Aug 30, 2008 1:42 pm
The question says "a pair of consecutive odd integers"

Stmt1: Exactly one is negative. That means the other one is certainly positive. The only pair possible in this situation is -1 and 1. This pair has a product of -1. This is sufficient.

Stmt2: At least one is positive. The other could be negative or positive. If the other is negative then we are left with the same choice as in Stmt1. If the other integer is positive then there are infinite possibilities. This is insufficient.

Hence A.
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by ddm » Sat Aug 30, 2008 3:11 pm
IMO - E
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by sethids » Sat Aug 30, 2008 3:47 pm
ddm wrote:IMO - E
Please explain why not A ?
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by Ian Stewart » Sat Aug 30, 2008 4:49 pm
The answer should be A, for exactly the reasons sethids gives above- nice explanation.
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re

by nitug » Mon Sep 01, 2008 9:11 am
ans is indeed A and the ques is complete.

Thanks sethids for pointing out the exact expalanation.
I wsnt able to see its just one pair of odd consecutive integers.

Thanks to all of u for ur replies!!
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by aj5105 » Mon May 04, 2009 1:59 am
(A)

Good explanation sethids.
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