A robotics firm has appointed a consultant to aid apply advanced manufacturing methods to raise profits. Currently the firm sells most of its products to a high-end customized online retailer and sales are steady at 250 per month. A single work cell manufactures the robots. To manufacture the robot, three operations are necessary. First the parts should be assembled, next software should be installed, and finally the robot should be safely packed and labelled for shipping. These operations take two hours, five hours, and one hour correspondingly. If there are six accessible work hours each day and the firm operates twenty days per month find:
a) The talk time
b) The number of workers the firm should hire.