SOLUTION: 600 men had provision of food for 28 days, reinforcement of 200 men arrived. The food will now last for ow many days ?

Question 884237: 600 men had provision of food for 28 days, reinforcement of 200 men arrived. The food will now last for ow many days ?
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
men can last days on the given food
Twice as many men could only last half that time, so
men can last days
--------------------------------
1/3 as many men can last 3 times as long, so
men can last days
-------------------------------
Twice as many men can last half that time, so
men can last days
You end up with men, so
21 days is the length of time they can last

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