If you invest $$100,000$ today in a duplex, what is your IRR for an investment where you receive $$1,250$ each month for $60$ months and then sell the property for $$125,000?$ Assume that the sale is at the end of the $60$th month.

Enter your answer as a number with $2$ decimal places. For example, if your answer is $31\mathrm{.}48\%,$ you should enter $31\mathrm{.}48.$

The answer is Between $18\mathrm{.}08$ and $18\mathrm{.}14!!!$ please explain how that is right