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Find the WRONG number in the series: 1, 9, 25, 49, 82, 121

Competition practiceNumber Series

A25
B82
C49
D9

Step-by-Step Solution

These are squares of odd numbers:

1^{2}, 3^{2}, 5^{2}, 7^{2}, 9^{2}, 1 1^{2} = 1

, 9, 25, 49, 81, 121. So 82 should be 81.

Answer: B) 82

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