Suppose Sasha decides to see the baboons. Which result would be a cost?
Sasha will save some time. The baboons are close by, but she would have had to walk to the the other side of the zoo to see the zebras. Sasha will give up the chance to see the zebras. She would have enjoyed seeing them more than the baboons.
Sasha is deciding whether to see the zebras or the baboons at the zoo. She 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 Sasha wants or needs:
Sasha will give up the chance to see the zebras. She would have enjoyed seeing them more than the baboons.