Answer:
35.8%
Explanation:
purchase price 3 years ago $15, so CF₀ = -15
CF₁ = $1
CF₂ = $2
CF₃ = $3 + $30 = $33
using an excel spreadsheet (or you can also a financial calculator), you must determine the internal rate of return (IRR) = 35.8%
the IRR is the interest rate where NPV = 0, or the future cash flows equal the investment amount