What group of letters will come at the place of question mark (?) in the following series from the options given below?

Given series:

SOWJ, QPUK, OQSL, ?, KSON

We will analyze each position separately.

Step 1: Write letters position-wise

1st letters:

S → Q → O → ? → K
S(19), Q(17), O(15), ?, K(11)

Pattern: −2 each time
So missing = 13 → M

2nd letters:

O → P → Q → ? → S
O(15), P(16), Q(17), ?, S(19)

Pattern: +1 each time
So missing = 18 → R

3rd letters:

W → U → S → ? → O
W(23), U(21), S(19), ?, O(15)

Pattern: −2 each time
So missing = 17 → Q

4th letters:

J → K → L → ? → N
J(10), K(11), L(12), ?, N(14)

Pattern: +1 each time
So missing = 13 → M

Step 2: Combine missing letters

M R Q M

✔️ Final Answer:

MRQM