In the following question, various terms of an alphanumerical series are given with one or more terms missing as shown by (?). Choose the missing terms out of the given alternatives. 3F, 6G, 11I, 18L, ?
Answer: B) 27P
The letters move 1, 2, 3, ... steps forward. The numbers increase by + 3, + 5, + 7, + 9....