Sign in
Please select an account to continue using cracku.in
↓ →
Select the number that can replace the question mark (?) in the following series.
1, 5, 9, ?, 21
The numbers represent the position in the alphabet of the letters a, e, i, and o which are the first four vowels. The next number in the sequence is therefore 21 which represents the letter u.
$$\therefore$$ The correct answer is option D.
Was this solution helpful?
Create a FREE account and get:
Start your IIM journey with the right preparation and crack CAT 2026.
Educational materials for CAT preparation
Ask our AI anything
AI can make mistakes. Please verify important information.
AI can make mistakes. Please verify important information.
91- 6303239042
