The maintenance repair shop of a manufacturer has a policy of 8 hours as the average time that each production machine to be repaired should be out of production. If it takes 12 hours on average for a repair worker to repair a machine, two machines per hour on the average are failing, and model 1 applies (assume that two workers can repair a machine in 6 hours, four workers can repair a machine in 3 hours, etc.):

A) how many repair workers are needed in the repair shop

B) If each machine requires 10 square feet of floor space, how much area should be provided on the average for the repair facility? (assume that repaired machines leave immediately)