3. Find the minimum and maximum internal rate of return for the following cash flow: Enter as number with one decimal point Example: If the computed answer is 6.3%, enter 6.3

1. Find the discounted payback period of the following investment discounted at 6%. Round UP to next whole number in years. (Enter answer as a whole number, no commas.) 0 ($12,000) $4,000 2 $3,000 $3,000 4 $3,000 5 $3,000 6 $3,000 7 $3,000 8 $3,000 9 $3,000 2. Consider the choice between two different machines: Machine A and Machine B. The two choices are mutually exclusive. We want to assess the present worth of each of the two investments over a 12 year planning horizon. Note the following: - The process can be repeated indefinitely. - The salvage value in any year is the final salvage value. What is the present worth of the better of the two investments over the 12 year period if the interest rate is 6%. (Enter as a whole number, no dollar signs, no commas) Attribute Machine A Machine B Service life 10 years 6 years Initial cost $20,000 $15,000 Annual savings $5,000 $4,000 Final salvage value $2,000 $1,000 Year Cash flow 0 -4,000 1 2,000 2 2,000 3 -2,000 4 1,900 5 900 6 200