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100 persons had food provision for 24 days. If 20 persons left the place, the provision will last for

(a) 30 days

(b) 96/5 days

(c) 120 days

(d) 40 days

Answer:

(a) 30 days

**Explanation:**

100 persons have food provision for = 24 days

1 person will have food provision for = 24×100 = 2500 days

If 20 persons left the place, then total left = 100-20 = 80 persons

Hence, 80 persons have food provision for = 2400/80 = 30 days

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