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      Question

      In how many different ways can the letters of word

      ‘SYSTEM’ be arranged?
      A 220 Correct Answer Incorrect Answer
      B 120 Correct Answer Incorrect Answer
      C 180 Correct Answer Incorrect Answer
      D 360 Correct Answer Incorrect Answer
      E None of these Correct Answer Incorrect Answer

      Solution

      The total number of letters in the word 'SYSTEM' is 6 where 'S' appears twice. Required number of ways = 6!/2! = (6 × 5 × 4 × 3 × 2)/2 = 360

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