A number series is given with one term missing. Choose the correct alternative for the question mark (?)
21, 25, 33, 49, 81, ?
1
145
2
129
3
113
4
97
5
None of the above/More than one of the above
A number series is given with one term missing. Choose the correct alternative for the question mark (?)
21, 25, 33, 49, 81, ?