Reasoning - Series Completion - Discussion

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Q.

2,2,5, 13,28,?  .                          
A. 49 B. 50
C. 51 D. 52

Answer: Option D
Explaination:

 


The pattern is + 0, + 3, + 8, + 15, ..... i.e. + (l2 - 1), + (22 - 1), + (32 - 1), + (42 - 1), .....
So, missing term = 28 + (52 - 1) = 28 + 24 = 52.




Discussion

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