2. Equipment and machinery decay with the passage of time. Older equipment is more prone to failure and loses its ability to produce the desired output or benefit. (a) Given two alternatives below in Table 2, select which one is better based on the equivalent and cost analysis and 8% interest rate. Table 2 / Jadual 2 A B Initial cost / Kos permulaan 15000 20000 Annual cost / Kos tahunan 6000 9000 Refurbishment cost/ 0 2000 every 4 years Kos pengubahsuaian Trade in value / Nilai pertukaran 20 40 Life, years / Hayat, tahun 12 (10) (b) A research lab for in space fuel cell systems that are hydrogen and methanol based. During lab research, 3 equal service machines need to be evaluated economically. Perform the present worth analysis with the cost shown below in Table 3, given that MARR is 10% per year. Table 3 / Jadual 3 Electric-Powered Gas-Powered Solar-Powered First cost, RM Kos pertama, RM Annual operating Berkuasa elektrik/Berkuasa Gas / Berkuasa Solar 4500 3500 6000 cost, RM/year Kos operasi 900 700 50 tahunan, RM/tahun Salvage value, S, RM / Nilai 200 350 100 penyelamatan, S. RM Life, years/ 8 8 8 Hayat, tahun (10) (Total / Jumlah: 20 )