1,2,3,5,8,? | series Logical reasoning | WBCS

Complete the series by finding the missing number from the given options.

1,2,3,5,8,?

(a) 11
(b) 13
(c) 15
(d) 9

Correct Answer: b

Solution: 

1+2=3

2+3=5

3+5=8

5+8=13