CAIE-Alevel-经济学-A2分类练习+解析

Helen's income is \$100 and she purchases food and drink. Food costs \$2 per unit and drink costs \$1 per unit. Which spending combination indicates that Helen intends to save some of her income?

The budget line for a consumer is represented by JK in the diagram.

The budget line of a consumer has shifted from JK to JH in the given diagram. What conclusion can definitely be drawn from the diagram?

In the diagram, a consumer's budget line and indifference curves for good X and good Y are shown. Assuming that income and prices of both goods remain constant, which point on the diagram represents the maximum satisfaction for the consumer?