Suppose Josiah decides to see the crocodiles. Which result would be a cost?
Josiah will save some time. The crocodiles are close by, but he would have had to walk to the the other side of the zoo to see the emus. Josiah will give up the chance to see the emus. He would have enjoyed seeing them more than the crocodiles.
Josiah is deciding whether to see the emus or the crocodiles at the zoo. He wants to see lots of animals, but the zoo is closing soon.
Before you decide to do something, it is often helpful to list costs and benefits.
Costs are what you give up or spend when you decide to do something. Costs involve giving up things that you want or need.
Benefits are what you gain or save when you decide to do something. Benefits involve gaining something that you want or need.
This result is a cost. It involves giving up or spending something that Josiah wants or needs:
Josiah will give up the chance to see the emus. He would have enjoyed seeing them more than the crocodiles.