What will come in place of the question mark (?) in the following letter series? OQ, PR, QS, RT, ? MCQ with Answer and Explanation

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What will come in place of the question mark (?) in the following letter series? OQ, PR, QS, RT, ?

A. SU

B. TV

C. SV

D. TU

Answer: Option A

Solution (By JKSSB Mock Tests)

First letters: O, P, Q, R, S (+1). Second letters: Q, R, S, T, U (+1). The next term is SU.

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? OQ, SU, WY, AC, ?

A. DG

B. DF

C. EG

D. EF

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Correct Answer: Option C

Explanation:
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

Question #2

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What will come in place of the question mark (?) in the following letter series? XA, DG, JM, PS, ?

A. WY

B. VZ

C. VY

D. WZ

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Correct Answer: Option C

Explanation:
First: X, D, J, P, V (+6 each, wrap). Second: A, G, M, S, Y (+6 each, wrap). So VY.

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? W, Z, E, L, U, ?

A. I

B. H

C. G

D. F

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Correct Answer: Option D

Explanation:
W(23)+3=Z(26), Z+5=E(31→5), E+7=L(12), L+9=U(21), U+11=32→F. So F.

This question belongs to: Reasoning Letter Series

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