Find the missing term: 6, 13, 25, 51, 101. ?
A. 201
B. 202
C. 203
D. 205
Answer: Option C
Solution (By Examveda Team)
The pattern is x2+1,x2-1,x2+1,x2-1.x...................So, missing term =101x2+1=203
This Question Belongs to Competitive Reasoning >> Number Series Completion
This can also be done through another way
There are two series
One of 6,25,101
Another is 13,51,?
6×4+1=25, 25×4+1=101
13×4-1=51,51×4-1=203