Amy and Bill are fixing up their house by painting walls and installing electrical outlets. In one hour, Amy can paint 8 walls, or install 6 outlets. In one hour, Bill can paint 5 walls, or install 5 outlets Required:
a. If Amy painted 8 walls in the first hour of work, and then switched to doing 6 outlets in the second hour of work, what was the opportunity cost of each of those outlets?
b. If Bill painted 5 walls in the first hour of work, and then switched to doing 5 outlets in the second hour of work, what was the opportunity cost of each of those outlets?