Table $1$

Machine A $($Weaving$)$ Machine B $($Coating$)$ Machine C $($Coiling$)$

Occurances Duration $($Minutes$)$ Occurances Duration $($Minutes$)$ Occurances Duration $($Minutes$)$

Calibration $244020501220$

Cleaning $406045451640$

Maintenance $121201690865$ The firm operates throughout the year except for $121$ closure dates. The plant operates three $8-$hour shifts daily. What is the design capacity of the machines? Specifically, what are the available hours of operation when only considering days of closure?