Food A contains 30 units of vitamin X and 20 units of vitamin Y per gram. Food B contains 30 units each of vitamin X and Y. The daily minimum human requirement of vitamin X and Y are 900 units and 1200 units respectively. How many grams of each type of food should be consumed so as to minimize the cost, if food A cost Rs. 0.50 per gram and food B cost Rs.0.70 per gram? Formulate the problem in standard form of LPPand solved by simplex method.