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      Question

      A village having a population of 8000 requires 200

      litres of water per head per day. It has a tank measuring 40 m `xx` 30 m `xx` 12 m. The water of this tank will last for
      A 3 days Correct Answer Incorrect Answer
      B 6 days Correct Answer Incorrect Answer
      C 12 days Correct Answer Incorrect Answer
      D 9 days Correct Answer Incorrect Answer
      E None of these Correct Answer Incorrect Answer

      Solution

      Daily need of water = 8000 × 200 Amount of water in the tank = 40m × 30 m × 12 m. Number of days = Amount of water in the tank/daily need of water = (40 × 30 × 12 × 1000)/(8000 × 200) (1litre = 1000m³) Number of days = 9 days

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