If a dish is to contain at least 50% Potato (by weight) and at least 10% (by weight) of each of the other three items, then what is the minimum cost of making one kg of the dish on day 3?
Explanation:
Since we need to minimize the cost, we would use maximize the use of low-cost ingredient i.e., Onions.
Out of 1 kg, 0.5 kg has to be Potato, 0.1 kg has to be Tomato and 0.1 kg has to be Cornflour. The remaining i.e., 0.3 kg will be Onions.
∴ Total cost = 0.5 × 55 + 0.1 × 22 + 0.1 × 47 + 0.3 × 15 = 27.5 + 2.2 + 4.7 + 4.5 = 38.9
Hence, option (a).
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