SOLUTION: What is the next number in this sequence??? 189 21 12 6 3

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Question 1034700: What is the next number in this sequence??? 189 21 12 6 3
Answer by fractalier(6550) About Me  (Show Source):
You can put this solution on YOUR website!
I see divide by 9, subtract 9 (or 3x3), divide by 2 (or subtract 2x3), subtract 3 (or divide by 2 again)...
The next number could by dividing by 9 again giving 1/3, or it could be subtracting 0, giving 3.
Not clear on this one...