Which of the following letter-number cluster will replace the blank (___) in the given series?
ME18, OG22, QI26, SK30, UM34,__________________

Correct option is A

.

Given: ME18, OG22, QI26, SK30, UM34,__________________
First letters (M, O, Q, S, U):
The sequence follows a pattern of increasing by 2 letters:
M → O (+2)
O → Q (+2)
Q → S (+2)
S → U (+2)
Following this pattern, the next letter should be W (+2 from U).
Second letters (E, G, I, K, M):
The sequence also increases by 2 letters:
E → G (+2)
G → I (+2)
I → K (+2)
K → M (+2)
Following this pattern, the next letter should be O (+2 from M).
Numbers (18, 22, 26, 30, 34):
The numbers are increasing by 4:
18 → 22 (+4)
22 → 26 (+4)
26 → 30 (+4)
30 → 34 (+4)
Following this pattern, the next number should be 38 (+4 from 34).
Correct term in the series should be WO38.
Alternate Solution:

Correct answer is (a) WO38.