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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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