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# stats ds

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VP
Joined: 22 Nov 2007
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06 Feb 2008, 01:01
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Set x consists of different positive numbers arranged in ascending order K L M 5 7. If K L M are consecutive integers, what is the arithmetic mean of X?

1.K*L*M is a multiple of 6
2. there are at least 2 prime numbers among K L M
CEO
Joined: 17 Nov 2007
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Concentration: Entrepreneurship, Other
Schools: Chicago (Booth) - Class of 2011
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06 Feb 2008, 02:47
E

we have two options:

(K,L,M)=(1,2,3)
(K,L,M)=(2,3,4)

both options satisfy the conditions but we have two different means of X
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Re: stats ds   [#permalink] 06 Feb 2008, 02:47
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