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      Question

      Three mixtures: A, B, and C containing 10%, 30%, and X%

      of water, respectively. If all these mixtures are mixed in the ratio of 1:2:1 to form a resultant mixture, and the resultant mixture contains 22% of water in it, then find the value of X.
      A 21 Correct Answer Incorrect Answer
      B 26 Correct Answer Incorrect Answer
      C 25 Correct Answer Incorrect Answer
      D 18 Correct Answer Incorrect Answer
      E None of these Correct Answer Incorrect Answer

      Solution

      ATQ, Let the quantity of mixture A, B, and C mixed be 100 litres, 200 litres, and 100 litres, respectively. Quantity of water in mixture A, B, and C is 10 litres, 60 litres, and X litres, respectively. According to the question, (10 + 60 + X)/400 = 22/100 70 + X = 88 X = 18

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