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      Question

      There is enough food in a camp to last for 40 days if

      each of the 50 soldiers present at the camp eat 3 times a day. After 10 days, 25 more soldiers joined the camp and remaining ate only twice a day. For how many days (from start) will the food last?
      A 40 days Correct Answer Incorrect Answer
      B 35 days Correct Answer Incorrect Answer
      C 45 days Correct Answer Incorrect Answer
      D 30 days Correct Answer Incorrect Answer
      E 50 days Correct Answer Incorrect Answer

      Solution

      Let the eating capacity of each soldier be 'x' units So, total food at the camp = (40 X 50 X 3 X x) = '6000x' units And food remaining after 10 days = 6000x - (10 X 50 X 3 X x) = '4500x' units So, required time = 4500x ├╖ (x X 2 X 75) = 30 days So, the food will last for a total of 30 + 10 = 40 days

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