A series is given, with one term missing. Choose the correct alternative from the given ones that will complete the series.
1,3,7,13,21,?
Consecutive even numbers are added.
1 + 2 = 3
3 + 4 = 7
7 + 6 = 13
13 + 8 = 21
21 + 10 =Â 31
=> Ans - (C)
Create a FREE account and get: