The Oakton River had long been considered an impediment to the development of a certain medium-sized metropolitan area in the southeast. Lying to the east of the city, the river made it difficult for people living on its eastern bank to commute to jobs in and around the city and to take advantage of the shopping and cultural attractions that the city had to offer. Similarly, the river inhibited those on its western bank from access to the ocean resorts lying one hour to the east. The bridge over the Oakton River had been built prior to World War II and was grossly inadequate to handle the existing traffic, much less the increased traffic that would accompany the forecasted growth in the area. A congressional delegation from the state prevailed upon the federal government to fund a major portion of a new toll bridge over the Oakton River and the state legislature appropriated the rest of the needed monies for the project.

1. Determine the minimum number of toll collectors that would have to be hired to meet the requirements expressed in the table.

2. The union had indicated that it might lift its opposition to the mixing of shifts in a 5-day block in exchange for additional compensation and benefits. By how much could the number of toll collectors required be reduced if this is done?