$10.$ a$)$ Klassen Toy Company, Inc., assembles two parts $($ parts $1$ and $2)$: Part $1$ is first processed

at workstation A for $15$ minutes per unit and then processed at workstation B for $10$ minutes

per unit. Part $2$ is simultaneously processed at work$-$station C for $20$ minutes per unit. Work

stations B and C feed the parts to an assembler at workstation D$,$ where the two parts are

assembled. The time at workstation D is $15$ minutes. i$)$ What is the bottleneck of this process?

ii$)$ What is the hourly capacity of the process?

$3$

b$)$ A work cell at Chris Ellis Commercial Laundry has a workstation with two machines, and

each unit produced at the station needs to be processed by both of the machines. $($The same

unit cannot be worked on by both machines simultaneously.$)$ Each machine has a production

capacity of $4$ units per hour. What is the throughput time of the work cell?

c$)$ What is the net present value of an investment that costs $ $75,000$ and has a salvage value

of $ $45,000?$ The annual profit from the investment is $ $15,000$ each year for $5$ years. The cost

of capital at this risk level is $12\%.$