SOLUTION: How long does it take for an investment to double in value if it is invested at 8% per annum compounded monthly?

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Question 249833: How long does it take for an investment to double in value if it is invested at 8% per annum compounded monthly?
Answer by rfer(16322) About Me  (Show Source):
You can put this solution on YOUR website!
n=ln2/ln(1+.006667)
n=0.3010/.002887
n=104.26/12=8.7 yrs