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      Question

      Refer to the following number series and answer the

      question that follows. All numbers are single-digit numbers only. Counting to be done from left to right only. (Left) 4 8 7 6 3 3 1 6 3 9 6 4 9 4 6 3 4 5 1 4 1 3 7 2 6 (Right) How many such numbers are there, each of which is immediately preceded by a perfect square and also immediately followed by a perfect square? (Note: 1 is also a perfect square.)
      A Two Correct Answer Incorrect Answer
      B Four Correct Answer Incorrect Answer
      C Three Correct Answer Incorrect Answer
      D One Correct Answer Incorrect Answer

      Solution

      (Left) 4 8 7 6 3 3 1 6 3 9 6 4 9 4 6 3 4 5 1 4 1 3 7 2 6 (Right) There are four numbers i.e. 964, 494, 451, 141 each of which is immediately preceded by a perfect square and also immediately followed by a perfect square.

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