i only need help with question 2 (redo portion) thanks!

2: Redo Problem #1 above, compounding for each complete year, but using simple interest for any remaining fraction of a year at the end. (This is what is actually done in practice.) : How many years does it take for a deposit of $1000 to reach $2550 with an annual effective interest rate of 11.5%? : 18.5995 Answer correct to 4 decimals