$16.$ Current price of A and B is Rs$.200$ each. Three possible economic situations are high growth, low growth, stagnation and recession. The Price returns for A are Rs$.200,220,240$ and $280$ respectively. For B$,$ they are Rs$.300,260,180$ and $120.$ Calculate the expected risk and return:

a$)$ Rs$.1000$ invested in A

b$)$ Rs$.1000$ invested in B$.$