Walt consumes strawberries and cream but only in the fixed ratio of three boxes of strawber ries to two cartons of cream. At any other ratio, the excess goods are totally useless to him. The cost of a box of strawberries is 10 and the cost of a carton of cream is 10. Walt's income is 200.Which of the following is true?
A、Walt demands 10 cartons of cream.
B、Walt demands 10 boxes of strawberries.
C、Walt considers strawberries and cartons of cream to be perfect substitutes.
D、Walt demands 12 boxes of strawberries.
发布时间：2025-09-06 00:53:21
