Assume you will receive $100,000 in 15 years, and the appropriate interest rate is 7% per year. What is the present value of this cash inflow?
Assume you give someone $70,000. They promise to give it back to you in 5 years, along with interest at a rate of 4% per year. How much will you receive at the end?
Assume you will receive $3,000 every year for 3 years, and the appropriate interest rate is 6% per year. What is the present value of this series of cash inflows?