What will come in place of the question mark (?) in the following letter series? AC, BD, CE, DF, ? MCQ with Answer and Explanation

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What will come in place of the question mark (?) in the following letter series? AC, BD, CE, DF, ?

A. FH

B. EH

C. FG

D. EG

Answer: Option D

Solution (By JKSSB Mock Tests)

First letters: A, B, C, D, E (+1). Second letters: C, D, E, F, G (+1). 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? H, K, N, Q, ?

A. S

B. U

C. T

D. R

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Correct Answer: Option C

Explanation:
The differences are: +3, +3, +3. The next letter is T.

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, C, F, J, O, ?

A. T

B. V

C. U

D. S

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Correct Answer: Option C

Explanation:
Differences: +2, +3, +4, +5, so next difference is +6. O+6 = U.

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? F, I, N, U, ?

A. A

B. C

C. B

D. D

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Correct Answer: Option C

Explanation:
F(6)+3=I(9), I+5=N(14), N+7=U(21), U+9=30→4=D. So answer D.

This question belongs to: Reasoning Letter Series

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