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# Got this from MGMAT. It's their challenge of the week. It

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Joined: 07 Jul 2004
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Got this from MGMAT. It's their challenge of the week. It [#permalink]  18 Jan 2006, 06:16
Got this from MGMAT. It's their challenge of the week. It should be breeze for most of you. The official answer is not out, but I've worked it out. So have fun, and I'll post my working soon.

If 3^k + 3^k = (3^9)^(3^9) - 3^k, then k = ?

A) 11/3
B) 11/2
c) 242
D) 3^10
E) 3^11 - 1
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Senior Manager
Joined: 13 Jun 2005
Posts: 253
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ywilfred this question was posted by giddi77

http://www.gmatclub.com/phpbb/viewtopic.php?t=25649
GMAT Club Legend
Joined: 07 Jul 2004
Posts: 5078
Location: Singapore
Followers: 22

Kudos [?]: 184 [0], given: 0

ah !! So all of you had fun already !! Neat !
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