Which of the four options will replace the question mark (?) in the following series?
XF 11 , YI 15, ZL 19 , AO 23, ?

Question

Which of the four options will replace the question mark (?) in the following series?
 XF 11 , YI 15, ZL 19 , AO 23, ?

Accepted Answer

Let's analyze the series step-by-step:

Series: XF 11, YI 15, ZL 19, AO 23, ?

1. First letters: X, Y, Z, A, ?
   - X (24th letter), Y (25th), Z (26th), A (1st)
   - The sequence goes forward in the alphabet, wrapping from Z to A.
   - Next letter after A is B.

2. Second letters: F, I, L, O, ?
   - F (6th), I (9th), L (12th), O (15th)
   - The difference between letters is +3 each time (6 to 9, 9 to 12, 12 to 15).
   - Next letter after O (15th) is R (18th).

3. Numbers: 11, 15, 19, 23, ?
   - The numbers increase by 4 each time (11+4=15, 15+4=19, 19+4=23).
   - Next number is 23 + 4 = 27.

Combining these, the next term is:
- First letter: B
- Second letter: R
- Number: 27

Hence, the correct option is 'BR 27'.

Answer

Answer

Answer