A fort has such food that 150 members can be served in 45 days.However after 10 days 25 people left from there.How many days the remaining food could be served.

• total days * total members = total mem for 10 days + remaining mem * days(ie food remaining days)
  so
  125*45=10*150+125*x
  x=42
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• let x be the no. of days required
  therefore 2*125*x/9*150*10=7/9
  x=42
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• only if they consume the same amount that they consumed with the 25 left,the answer would be 42.
  
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• totally,number of meals consumed by 159 members per a day are 150.therfore for 45 days,it is equal to=150*45.
  number of meals eaten in 10 days are equal to=150*10.
  remaining meals are = 150*45-150*10=150*35=5250 meals.
  if 125 are consumed daily by 125 members,5250 would last for 42 days.
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