Select the letter that can replace the question mark (?) in the following series.
A, E, I, ?, Q, U
Answer & explanation
Correct answer: option 2
The correct answer is Option (2) → M
The pattern is based on alphabet positions increasing by 4:
- A → 1
- E → 5
- I → 9
- ? → 13
- Q → 17
- U → 21
The 13th letter of the alphabet is M.