Why do cowboys have so much trouble with math answer key 3.16?

Cowboys had trouble with math answers because they were not studious people. Most of them did not even know how to read. Some of them were mercenaries or thieves, others live on a farm and all they did was work on the field and feed the animals, but did not go to school because they started to work on the farm when they were kids so all they knew was how to use tools, how to work the land and how to treat of the animals, and that was all. They had trouble because they did not work out their minds by readind books or writting.