There are two types of fertilizers. F1 and F2 F1, consists of 10% nitrogen and 6% phosphoric acid and F, consists of 5% nitrogen and 10% phosphoric acid. After testing the soil conditions, a farmer Vaidhya finds that he needs at least 14 kg of nitrogen and 14kg of phosphoric acid for the crop. If F1 costs Rs 6 per kg and F2 costs Rs. 5 per kg, determine how much of each type of fertilizer should be used so that nutrient requirements are met at a minimum cost. Solve graphically.
