Click the button to start

How long will it take:

to grow into  
if it is invested at
compounded ?

Work the problem on some paper...
When you're done, click on the answer below.
But, don't look at it before you've really tried it on your own!

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If you're off by the last decimal place, it's just because my program rounds differently than
your calculator...  If you're off by more than that,
you are making rounding errors!

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