Equivalent annual cost
A town can buy pump A for $48,000 (operating $6,500 a year, salvage $4,000) or pump B for $62,000 ($4,200 a year, salvage $6,000). Both last 10 years. At 6%, which has the lower equivalent annual cost, and by how much?
Original problems
New problems for every syllabus topic, never copied from past papers.



