1. Consider the following cash flow profile and assume MARR is 10 percent/year. EOY NCF 0 $100 25 200 100 250 -200 -100 4 5 6 Based on the number of sign changes, how many possible rates of return are there for this project? Plot the present worth of this project as a function of interest rate. How many rates of return are there? Is this a good project to invest in given the MARR above? a. b. c. 1. Consider the following cash flow profile and assume MARR is 10 percent/year. EOY NCF 0 $100 25 200 100 250 -200 -100 4 5 6 Based on the number of sign changes, how many possible rates of return are there for this project? Plot the present worth of this project as a function of interest rate. How many rates of return are there? Is this a good project to invest in given the MARR above? a. b. c