F2 Investment appraisal

Kindly help me to get the answer and explain me the simple method

question :

A particular project requires an initial cash outflow of $ 60,000 . 2 years from now , there will be a cash inflow of $ 20,000 , with an inflow of the same amount each year after that for 5 years .
what is the NPV of the project if the discount rate is 10% .

please give me answer .

thanks