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# What is the product of a certain pair of consecutive odd

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Manager
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What is the product of a certain pair of consecutive odd [#permalink]

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16 Oct 2010, 00:27
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.

i thought that we need to find the answer to the question and selected E as we won't be able to find the answer

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Re: What is the product of a certain pair of consecutive odd [#permalink]

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18 Nov 2011, 21:36
1
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how if we plug the other odd numbers in? e.g. (3,-3) or (5,-5)
i'm still not sure whether the question is asked the exact number or just negative or positive number as the result
anyone can explain this to me? thanks :D

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16 Oct 2010, 00:39
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mrinal2100 wrote:
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.

i thought that we need to find the answer to the question and selected E as we won't be able to find the answer

Yes, we need to find an asnwer. But A is sufficient. Since we know there is a pair of integers of which exactly one is negative, the only possible pair is {-1,1} and hence the product is -1.
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16 Oct 2010, 03:01
shrouded, i choose option a too, but for -1 and 0, so the product of both begn 0, why did you choose 1 and -1 ? thank you in advance

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16 Oct 2010, 03:22
Because it says odd integers

0 is not odd

Posted from my mobile device
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Re: What is the product of a certain pair of consecutive odd [#permalink]

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19 Nov 2011, 00:23
evdo wrote:
how if we plug the other odd numbers in? e.g. (3,-3) or (5,-5)
i'm still not sure whether the question is asked the exact number or just negative or positive number as the result
anyone can explain this to me? thanks :D

Evdo,the question statement says,
A Pair of Consecutive Odd Integers.
So,the only possibility is of (-1,1)

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Re: What is the product of a certain pair of consecutive odd [#permalink]

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19 Nov 2011, 12:56
+1 A

(-1,1) is the only pair
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Re: What is the product of a certain pair of consecutive odd [#permalink]

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20 Nov 2011, 01:56
mrinal2100 wrote:
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.

i thought that we need to find the answer to the question and selected E as we won't be able to find the answer

From S1, the only possibility is of -1 and 1, whereas from S2, there is possibility of not only -1 and 1, but also of 1,3 or 3,5 etc.

Thus S1 is the correct answer.

A

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Re: What is the product of a certain pair of consecutive odd   [#permalink] 20 Nov 2011, 01:56
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# What is the product of a certain pair of consecutive odd

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