Four persons P, Q, R and S are to be seated in a row. R should not be seated…

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Four persons P, Q, R and S are to be seated in a row. R should not be seated at the second position from the left end of the row. The number of distinct seating arrangements possible is:

  1. A.

    6

  2. B.

    9

  3. C.

    18

  4. D.

    24

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