Maria only consumes both strawberries (s) and tea (t). She has a strong preference for having exactly as many strawberries and tea. Her preference can be represented by the utility function: U(s,t) = min {2t-s,s}.

What utility does Maria if she has 1 strawberry and 1 tea? If she gets a second strawberry (s = 2; t = 1), would that make her better, worse, or the same? What if she acquires a second tea (s = 1 and t = 2)? Explain.

Note: not a perfect complement preference