A $10 thousand investment in a stock is expected to achieve a rate of return of 20% per year. At this rate, approximately how much time is expected to pass for the investment expected to be valued at $100 thousand?

1. 5.0 years (check answer)
2. 10.0 years (check answer)
3. 12.6 years (check answer)
4. 16.3 years (check answer)
5. 50.0 years (check answer)

Have a solution? Hint? Question? Drop it below. We’d love to hear from you. A full solution will be posted on January 18th. If you would like to learn how to enter fancy math formulas into this blog, visit the WordPress LaTeX tutorial page.