Reasoning - Series Completion - Discussion

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Q.

5, 27, 61, 122, 213, 340, 509  .                          
A. 21 B. 67
C. 122 D. 509

Answer: Option A
Explaination:

 


The terms of the series are (23 - 3), (33 - 3), (43 - 3), (53 - 3), (63 - 3), (73 - 3),(83-3).
So, 27 is wrong and must be replaced (33 - 3) i.e. 24.




Discussion

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