Which letter will replace the question mark (?) in the following series?
C, F, I, L, ?
Answer & explanation
Correct answer: option 2
According to the above alphabet position:
C ⇒ 3, F ⇒ 6, I ⇒ 9, L ⇒ 12, O ⇒ 15
(add 3 to the previous alphabet position)