Problem set up in my economics textbook:

An economy consists of three workers: Larry, Moe, and Curly. Each works ten hours a day and can produce two services: mowing lawns and washing cars. In an hour, Larry can either mow one lawn or was one car; Moe can either mow one lawn or wash two cars; and Curly can either mow two lawns or wash one car. What is the most efficient way for them to produce results in one workday?

My first instinct was, fire that layabout Larry.