Suppose firm A sold raw materials to firm B for ₹1000 and to firm C for ₹600. Firm B sold its product partly to private conumers for ₹800 and remaining product was exported for ₹600. Firm C part of its product to the government for ₹500 for public consumption and the remaining product worth ₹500 was unsold stock left with it. (Assume that firm A buys no raw material). (i) Find the value added by firm A, firm B and firm C. (ii) Total consumption expenditure. (iii) Savings and Investment.