How Many Person in the Row? If

In a row A is 7th from the left and B is 9th from the right. If both interchange their places, then A becomes 11th from the left. The number of persons in the row is

  1. 18
  2. 20
  3. 21
  4. 19
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    Answer: (4) 19
    Explanation:-

    In a row A is 7th from the left and B is 9th from the right. If both interchange their place.
    Then, A become 11th from the left.
    ————————à7      3      9 ß————————
    A               B
    Number of persons in a row.
    7 + 3 + 9 = 19

    Hence, the number of person is 19 in a row.

    Anurag Mishra Professor Answered on 3rd June 2015.
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