I) The utility function of Ryan is given by U = 20 X Y and the prices of goods X nd Y are K5, 000 and K1, 000 respectively.He has an income of K 30,000 to spend its (i) Calculate the marginal utilities of goods X and Y (ii) Show that the ratio of the marginal utilities is equal to the inarginal rate of substitution. (iii) Find the values of X and Y that maximize utility. (iv) Calculate his total utility (v) Given that his income increases by K5, 000, calculate the change in total utility
