Multiple choice general knowledge

1, 9, 25, 49, X, 121

  1. 64

  2. 81

  3. 91

  4. 100
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B Correct answer
Explanation

The series is squares of odd numbers: 1²=1, 3²=9, 5²=25, 7²=49, 9²=81, 11²=121. So X = 9² = 81. The pattern uses consecutive odd numbers (1,3,5,7,9,11) squared.

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