Which of the following letter-number clusters will replace the question mark (?) in the given series to make it logically complete?

GKO 11, IMQ 13, KOS 15, MQU 17, ?

OSW 19

NQS 21

ORT 21

NTZ 19

APEDIA

RRB NTPC Graduate Tier 1

2025 • 06 Jun, 2025 • Shift-2

Which of the following letter-number clusters will replace the question mark (?) in the given series to make it logically complete?

GKO 11, IMQ 13, KOS 15, MQU 17, ?

Correct Answer

OSW 19

First Letter Pattern: Analyze the progression of the first letters of each cluster: G (+2 letters) -> I (+2) -> K (+2) -> M. Adding 2 to M leads to 'O'.Subseque......

💡 Analysis & Explanation

First Letter Pattern ▼

Analyze the progression of the first letters of each cluster: G (+2 letters) -> I (+2) -> K (+2) -> M. Adding 2 to M leads to 'O'.

Subsequent Letters Pattern ▼

The second letters follow an identical +2 jump logic: K -> M -> O -> Q. Moving +2 from Q gives 'S'. The third letters similarly leap by +2: O -> Q -> S -> U, logically leading to 'W'.

Numeric Progression ▼

The number attached to the end of each cluster increases consistently by 2: 11, 13, 15, 17. The next natural number in this odd series is 19.

Conclusion ▼

Merging these decoded elements correctly constructs the next cluster: OSW 19.

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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?GKO 11, IMQ 13, KOS 15, MQU 17, ?

Which of the following letter-number clusters will replace the question mark (?) in the given series to make it logically complete?

GKO 11, IMQ 13, KOS 15, MQU 17, ?