note.correct information to be annual maintenance,annual user cost

nw Initial Capital Cost X $1000 Annual Maintenance Costs X $1000 Annual. User Costs x 1000 Salvage Value at 30 years X 1000 Scheme Do nothing 250 170 100 6,500 10,200 17,500 500 8000 6500 5600 4500 1200 2500 2. Using the figures of problem 1 conduct an internal-rate-of-return analysis for the se- lection of the most economic scheme