In a hospital there is sufficient food for its 900 patients for 60 days. After 40 days, 400 patients are discharged from the hospital and no new ones are added. For how many extra days will the rest of the food last for the remaining patients if each patient consumed the same amount of food?
Explanation:
Total food available for 900 patients for 60 days = 900 × 60 units
Total food consumed by 900 patients in 40 days = 900 × 40 units
Food remaining = 900 × 20 units
Number of patients remaining = 500
∴ Number of days = 18000/500 = 36
∴ Number of extra days = 36 – 20 = 16 days
Hence, option (d).
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