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In a fort,300 men had provisions for 90 days.After 20 days,50 men left the fort.How long would the food last at the same rate?

 

Please help with a hint.

 Jun 30, 2020
 #1
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300 men x 90 days = 27000 man- days of provisions

 

300 men x 20 days = 6000 man days of provisions   leaving   21000 man days of provisions

 

21000 m-d / 250m =  84 days    remaining

 Jul 1, 2020

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