1.

In each of the following number series, the wrong number is given, find out that number.12, 12, 16, 34, 84, 1821. 122. 843. 344. 165. 182

Answer» Correct Answer - Option 2 : 84

Calculation

The series follows following pattern

⇒ 12 + (13 – 12) = 12

⇒ 12 + (23 – 22) = 16

⇒ 16 + (33 – 32) = 34

⇒ 34 + (43 – 42) = 82

⇒ 82 + (53 – 52) = 182

∴ The wrong number in the series is 84


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