How do we solve it in detail and what law do we use?

4) An investment pays you $30,000 at the end of this year, and $10,000 at the end of each of the four following years. What is the present value (PV) of this investment, given that the interest rate is 5% per year? A) $39,614 B) $63,382 C) $79,228 D) $95,074 Answer: C dolato PV 5