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Which of the following letter-number clusters will replace the question mark (?) in the given series to make it logically complete? IJM 77, PQT 69,
Question

Which of the following letter-number clusters will replace the question mark (?) in the given series to make it logically complete?
IJM 77, PQT 69, WXA 61, DEH 53, ?

A.

KMN 45

B.

KKN 44

C.

KLO 45

D.

KSB 44

Correct option is C

Information Given:
Series: IJM 77, PQT 69, WXA 61, DEH 53, ?
Logic: ​Numbers decrease by 8; each letter advances by 7 cyclically.
Numbers: 77 → 69 → 61 → 53 → 45 (−8 each).
Letters move column-wise:
I → P → W → D → K (+7)
J → Q → X → E → L (+7)
M → T → A → H → O (+7)
Explanation:
Next cluster = KLO 45.
Final Answer:
KLO 45
Final Correct Option:
C

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