1. Two mutually exclusive alternatives requiring different investments are being considered. The life of all two alternatives is estimated to be 20 years with no salvage value. The MARR that is considered is acceptable is 12%. The cash flows representing these two alternatives are as follows: Investment cost Net income per year Alternative A $100,000 $15,000 Alternative B $60,000 $11,000 Find the investment that should be selected using IRR on incremental investment (use PW formula).