Q11 A fort had provisions for food for 300 men over a period of 90 days. After 20 days, 50 men left the fort. How long would the
food last at the same rate?
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Answer:
Remaining number of men =(300−50)=250.
Remaining number of days =(90−20)days=70 days
300 men had provisions for 70 days
1 man had provisions for (300×70) days ...[less men, more days]
250 men had provisions for
250
300×70
days =84 days ...[more men, less days]
Hence, the remaining food will last for 84 days.
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