If the quantity of all the four items used in the dish remain the same in weeks 1 and 3, then what is the percentage increase in the cost of making 1 kg of the dish on day 4, when compared to day 2?
Explanation:
Since the composition of dish is not known, we cannot determine the cost of making 1 kg of the dish.
∴ The % increase in cost cannot be determined.
Hence, option (d).
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