Paving Crew A on 135 consisting of 4 workers that paved 12 miles of two-lane road. Paving Crew B with 3 workers paved 6 miles of four-lane road. (Hint: One crew is paving two-lane road and the other is paving four-lane road. Your outputs have to be comparable for each crew.) a. Calculate the productivity of each crew miles per worker. b. Calculate the multifactor productivity of each crew if Crew A takes 6 days and Crew B takes 10 days to complete their paving. Both pay their employees $25 per hour and each employee works 8 hours per day. Crew A uses $6,000 of material and Crew B uses $12,000 of material.