Refer to Problem 5.5 and answer the following questions.
(a) Graph the project balances (at i = 10%) of each project as a function of n.
(b) By examining the graphical results in part (a), determine which project appears to be the safest to undertake if there is some possibility of premature termination of the projects at the end of year 2.
Problem 5.5
Consider the following cash flows in Table P5.5.
(a) Calculate the payback period for each project.
(b) Determine whether it is meaningful to calculate a payback period for project D.

Project's Cash Flow (S) 0 $3,500 $5,000 7,500 $4,000 2,000 5,000 800 2.000 800 1,5002,000 3,000 800 1,500 2,000 2,500 800 800 800 1.500 800 800 500 4.000 1000 500 5,000 1.000 2,000 3,000 4