Directions (Q91–95): Food X contains 6 units of vitamin D per gram and 7 units of vitamin E per gram and costs Rs 12 per gram. Food Y contains 8 units of vitamin D per gram and 12 units of vitamin E per gram and costs Rs 20 per gram. The daily minimum requirements of vitamin D and E are 100 units and 120 units respectively. Let x be the quantity (in grams) of food X and y the quantity (in grams) of food Y.
The minimum cost of food is:
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Correct answer: A. 205
Explanation
At (15, 5/4): 12 × 15 + 20 × 1.25 = 180 + 25 = 205.More Discrete Structures and Optimization questions
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