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Question
Find the missing term :- 1, 9, 25, 49, 81, ?
Options:
A .  100
B .  112
C .  121
D .  144
Answer: Option C
The series consists of squares of consecutive odd numbers i.e., 12 , 32 , 52 , 72 , 92 ,..............So, missing term = 112 = 121

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