What will come in place of the question mark (?) in the following letter series? X, Z, B, D, F, ? MCQ with Answer and Explanation

What will come in place of the question mark (?) in the following letter series? X, Z, B, D, F, ?
A. G
B. I
C. J
D. H
Answer: Option D
Solution (By JKSSB Mock Tests)
The series consists of alternate letters: X, Z, B, D, F. The next letter is H.

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Practice More Letter Series Questions

Question #1
What will come in place of the question mark (?) in the following letter series? M, P, U, B, ?
A. L
B. I
C. J
D. K

Correct Answer: Option D


Explanation:
M(13)+3=P(16), P+5=U(21), U+7=B(28→2), B+9=11→K. So K.

This question belongs to: Reasoning Letter Series
Question #2
What will come in place of the question mark (?) in the following letter series? ZA, XC, VE, TG, ?
A. RI
B. RJ
C. SJ
D. SI

Correct Answer: Option A


Explanation:
First letters: Z, X, V, T, R (decreasing by 2). Second letters: A, C, E, G, I (increasing by 2). The missing term is RI.

This question belongs to: Reasoning Letter Series
Question #3
What will come in place of the question mark (?) in the following letter series? Z, U, Q, ?, L
A. N
B. O
C. M
D. P

Correct Answer: Option A


Explanation:
The differences are: -5, -4, -3, -2. Z-5=U, U-4=Q, Q-3=N, N-2=L.

This question belongs to: Reasoning Letter Series