interest question...

[shhhnake_eyes]

At a 6.9% annually compounded rate, how long will it take to triple your money?

[ChromePony]

These are fun (http://www.moneychimp.com/calculator/compound_interest_calculator.htm)

I get about 16.5 by trial and error.

[ChromePony]

Conversely you can actually do the math yourself, it aint that hard, especially for annual compunding.

Annual:
P = Po * (1+r)^t

Or In General:
P = Po * (1+r/c)^t*c
where c is number of compunds/year