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VP
Joined: 22 Nov 2007
Posts: 1108
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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
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CEO
Joined: 17 Nov 2007
Posts: 3594
Concentration: Entrepreneurship, Other
Schools: Chicago (Booth) - Class of 2011
GMAT 1: 750 Q50 V40
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Ewe 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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