Complete the series.
8, 13, 13, 23, 18, 33, (…)

Correct option is D

Given:
8, 13, 13, 23, 18, 33, (…)
Identification:
In this series there are two series are given as-
1st series → 8, 13, 18………
2nd series → 13, 23, 33………….
Logic: 1st series – (+5) and 2nd series – (+10)
Trick to solve:
8 → (+5) = 13 → (+5) = 18 → (+5) = 23
13 → (+10) = 23→ (+10) = 33→ (+10) = 43
Thus, the series is –
8, 13, 13, 23, 18, 33, (23)