Value of (3^[x-1])^3.

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fightthegmat: Senior | Next Rank: 100 Posts; Posts: 31; Joined: Wed Jan 14, 2009 11:45 am; Thanked: 1 times; GMAT Score:600

by fightthegmat » Tue Sep 08, 2009 10:37 am

If 3^6x = 8,100, what is the value of (3^[x-1])^3 ?
A. 90
B. 30
C. 10
D. 10/3
E. 10/9

Pls explain the method

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Source: Beat The GMAT — Problem Solving | Tue Sep 08, 2009 10:37 am

bharathh: Master | Next Rank: 500 Posts; Posts: 159; Joined: Thu Aug 27, 2009 10:30 am; Thanked: 19 times

by bharathh » Tue Sep 08, 2009 10:57 am

https://www.beatthegmat.com/three-questi ... 42119.html

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