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Find the value in place of ? in the series: 1, 9, 25, 49, 81, ?

Competition practiceNumber Series

A121
B100
C120
D144

Step-by-Step Solution

These are squares of consecutive odd numbers

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

. Next is

1 1^{2} = 121

.

Answer: A) 121

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