Please i need this ASAP a step by step process

DONT USE EXCEL

2. Two mutually exclusive alternatives for office building refrigeration and air conditioning are being investigated. Their costs and lives are summarized as follows: MARR=10% AC 60,000 CC 80,000 Capital investment Annual Benefit (Revenues) SV Useful life 40,000 10000 52,000 15,000 6 If MARR=10%. Which chilling system should be recommended