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      Question

      540 litres of mixture β€˜A’ contains milk and water in

      it. If mixture β€˜A’ is mixed with 660 litres of mixture β€˜B’ which contains water and salt, then the ratio of quantity of milk, water and salt in the final mixture will be 6:7:2, respectively. Find the difference between quantity of water in mixture β€˜A’ and mixture β€˜B’.
      A 440 litres Correct Answer Incorrect Answer
      B 420 litres Correct Answer Incorrect Answer
      C 360 litres Correct Answer Incorrect Answer
      D 450 litres Correct Answer Incorrect Answer
      E 380 litres Correct Answer Incorrect Answer

      Solution

      Total quantity of mixture = 540 + 660 = 1200 litres Quantity of milk in final mixture = (6/15) Γ— 1200 = 480 litres Quantity of water in mixture β€˜A’ = 540 βˆ’ 480 = 60 litres Quantity of salt in mixture β€˜B’ = (2/15) Γ— 1200 = 160 litres Quantity of water in mixture β€˜B’ = 660 βˆ’ 160 = 500 litres Required difference = 500 βˆ’ 60 = 440 litres

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