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Are all of the numbers in a certain list of 15 numbers

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Are all of the numbers in a certain list of 15 numbers [#permalink] New post 22 Jul 2009, 12:19
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Are all of the numbers in a certain list of 15 numbers equal?
1). The sum of all of the numbers in the list is 60
2). The sum of any 3 numbers in the list is 12
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Re: NUMBERS [#permalink] New post 22 Jul 2009, 12:28
vcbabu wrote:
Are all of the numbers in a certain list of 15 numbers equal?
1). The sum of all of the numbers in the list is 60
2). The sum of any 3 numbers in the list is 12


B.
1) Sum of 15 numbers is 60, so individual numbers can be same or different.
INSUFF

2) Sum of 'any' 3 numbers in the list is 12. Hence, each number should be 4.
SUFF
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Re: NUMBERS [#permalink] New post 22 Jul 2009, 16:22
vcbabu,

What is the OA?
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Re: NUMBERS [#permalink] New post 22 Jul 2009, 17:46
Quote:
Are all of the numbers in a certain list of 15 numbers equal?
1). The sum of all of the numbers in the list is 60
2). The sum of any 3 numbers in the list is 12


Stat 1 - not suff
It just tells sum of the numbers but nothing about the numbers

Stat 2 -suff
The sum of any 3 numbers is 12 - tells that all the numbers are equal to 4.


Hence B
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Re: NUMBERS   [#permalink] 22 Jul 2009, 17:46
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