試題詳解

7. Suppose that U(x,y) = min(3x,y). Further suppose that P_x = $5 per unit and P_y = $10 per unit and income is I = $105. For this consumer, the optimal basket to buy would be
(A)(x,y) = (9,3)
(B) (x,y) = (3,1)
(C) (x,y) = (1,3)
(D)(x,y) = (3,9)