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      Question

      The diameter of the base of a cylindrical drum is 28 cm

      and its height is 15 cm. The drum is full of water and the water from the drum is transferred to โ€˜nโ€™ cuboidal tanks having dimension 12 cm ร— 5 cm ร— 11 cm, each. Find the value of โ€˜nโ€™.
      A 10 Correct Answer Incorrect Answer
      B 15 Correct Answer Incorrect Answer
      C 12 Correct Answer Incorrect Answer
      D 14 Correct Answer Incorrect Answer
      E None of these Correct Answer Incorrect Answer

      Solution

      Radius of the base of the cylindrical drum = 28/2 = 14 cm According to the question, Volume of cylindrical drum = volume of โ€˜nโ€™ cuboidal tanks Therefore, (22/7) ร— 14 ร— 14 ร— 15 = n ร— 12 ร— 5 ร— 11 Or, n = 9240/660 = 14

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