Select the number from among the given options that can replace the question mark (?) in the following series.
13, 23, 43, 53, 73, 83, 103, 113, ?

Correct option is B

Given:
13, 23, 43, 53, 73, 83, 103, 113, ?
checking the difference:

23 - 13 = 10
43 - 23 = 20
53 - 43 = 10
73 - 53 = 20
83 - 73 = 10
103 - 83 = 20
113 - 103 = 10

we can conclude that difference are 10 and 20 alternatively.
so next difference would be 20
missing term = 113 + 20 = 133

option B is correct.