What will come in place of the question mark (?) in the following letter series? OQ, SU, WY, AC, ? MCQ with Answer and Explanation

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What will come in place of the question mark (?) in the following letter series? OQ, SU, WY, AC, ?

A. DG

B. DF

C. EF

D. EG

Answer: Option D

Solution (By JKExamLibrary)

First letters: O, S, W, A, E (+4, wrapping around). Second letters: Q, U, Y, C, G (+4, wrapping around). The next term is EG.

This question belongs to: Reasoning Letter Series

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Question #1

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What will come in place of the question mark (?) in the following letter series? ZY, XW, VU, TS, ?

A. QR

B. RP

C. RQ

D. QP

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Correct Answer: Option C

Explanation:
Each pair is in reverse alphabetical order, decreasing by 2: ZY, XW, VU, TS. The next pair is RQ.

This question belongs to: Reasoning Letter Series

Question #2

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What will come in place of the question mark (?) in the following letter series? A, D, I, P, Y, ?

A. J

B. M

C. L

D. K

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Correct Answer: Option A

Explanation:
Differences: +3,+5,+7,+9 – next +11 gives Y(25)+11=36→10=J. So J.

This question belongs to: Reasoning Letter Series

Question #3

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What will come in place of the question mark (?) in the following letter series? BKK, DMM, FOO, _, JSS

A. HQQ

B. HBB

C. HLL

D. HTT

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Correct Answer: Option A

Explanation:
First letters: B, D, F, H, J (skip one letter). Second and third letters: K, M, O, Q, S (skip one letter). The missing term is HQQ.[reference:14]

This question belongs to: Reasoning Letter Series

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