Directions: In each of the following questions, a specific series is given. Identify the wrongly placed number in the series. 9, 11, 17, 19, 27, 29, 39, 49, 53, 55

The correct series alternates between adding 2 and adding an increasing even number to the previous term. Starting from 9, we add 2 to get 11, then add 6 to get 17, add 2 to get 19, and add 6 to get 25. Following this pattern of adding 2 and 6 alternately, the sequence should be 9, 11, 17, 19, 25, 27, 33, 39, 45, and 47. The number 49 breaks this established pattern and is therefore the incorrectly placed number.

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