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What is the value of the sum of a list of 'n' odd integers ?

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What is the value of the sum of a list of 'n' odd integers ? [#permalink] New post 29 Dec 2009, 07:33
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27. What is the value of the sum of a list of 'n' odd integers ?

1) n= 8
2) The square of the number of integers on the list is 64.

My answer differed from the OA answer. Please explain.
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Re: A Data Sufficiency problem [#permalink] New post 29 Dec 2009, 07:53
Expert's post
E

1) knowing n is not enough. For example, (1,3,5) and (3,5,111). insufficient.
2) the same as first one.

It is a "twins"-trap: two statements are the same.
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Re: A Data Sufficiency problem [#permalink] New post 01 Jan 2010, 16:33
Would go with E...

Just the number of integers won't help!

What is OA?
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Re: A Data Sufficiency problem [#permalink] New post 06 Jan 2010, 13:38
Its E, both statements say the same thing and just knowing the number of integers wont give you the sum.
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Re: A Data Sufficiency problem [#permalink] New post 12 Mar 2010, 11:59
vinayaksatapute wrote:
27. What is the value of the sum of a list of 'n' odd integers ?

1) n= 8
2) The square of the number of integers on the list is 64.

My answer differed from the OA answer. Please explain.



both are not sufficient.
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Re: A Data Sufficiency problem [#permalink] New post 13 Mar 2010, 17:31
1) n = 8, insufficient

2) n^2 = 64; n = 8, as n cannot be negative, insufficient

1 and 2 together clearly reiterate merely that n = 8

Thus, the answer is E.
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Re: A Data Sufficiency problem [#permalink] New post 14 Mar 2010, 06:28
27. What is the value of the sum of a list of 'n' odd integers ?

1) n= 8 - insufficient
2) The square of the number of integers on the list is 64 - n^2 = 64...n = + - 8
together n = +8

Insuff. Hence E
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Re: A Data Sufficiency problem [#permalink] New post 14 Mar 2010, 21:52
vinayaksatapute wrote:
27. What is the value of the sum of a list of 'n' odd integers ?

1) n= 8
2) The square of the number of integers on the list is 64.

My answer differed from the OA answer. Please explain.


Its E both statements are same and they are not sufficient to answer.
Whats the OA.
Re: A Data Sufficiency problem   [#permalink] 14 Mar 2010, 21:52
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