Calculate the marginal rate of substitution between c1 and c2 when (i) (c1, c2) = (1, 1), (ii) (c1, c2) = (1, 2) and (iii) (c1, c2) = (2, 1).

Questions 1-3 below refer to a consumer with preferences over consumption when young and old that is given by either of the following utility functions (a = .5). Either representation of preferences givas rise to the marginal rate of substitution function below: M = = _ R3031, 62) U2 (cl, C2) (1 (1)01 1. Calculate the marginal rate of substitution between 61 and c2 when (i) (01,62) = (1,1), (ii) (aha-2) = (1,2) and (iii) (chcz) = (2,1)