Posted by jr on Thursday, November 29, 2012 at 12:51am.
100r^2 < 30
r < √0.3 = 0.547722
so, one sequence would have r=.5:
100 50 25 12.5 6.25 ...
If r=.5477, we have
100 54.77 29.997 16.429 8.999 ...
The 3rd term is just less than 30.
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