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Question
Find out the wrong term: 1, 3, 12, 25, 48
Options:
A .  3
B .  12
C .  25
D .  48
Answer: Option C
The terms of the series are (12 - 0), (22 - 12 ), (42 - 22 ), (62 - 32 ), and (82 - 42 ), So, 25 is wrong and must be replaced by (62 - 32) i.e., 27.

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