If Machine A has a NPW of $29,282 and Machine B has a NPW of $40,847 over an 8-year period, what is the difference in the annual worth of Machine B over Machine A at a rate of 12% p. y. c. y? Question 4 Consider two mutually exclusive projects with year-end cashflows as shown. At a MARR of 8%, which project would be worth pursuing using the concept of incremental IRR. Y 0 -$11,500 -$9,000 1 $4,000 $2,000 2 $3,000 $4,000 3 $3,000 $2,000 41 $2,500 $2,000