Reasoning Ability | Questions
Letter Series questions with solutions
Letter Series is a Reasoning Ability topic for competitive exams. It appears across bank and railway exams. This page has 40 solved letter series questions written to the official pattern, with a worked solution under each.
- Question 1Easy
Find the next term in the series: C, E, G, I, ?
- A.S
- B.F
- C.KCorrect
- D.Q
- E.Y
Show solution
Each letter advances by 2 places in the alphabet, so the term after I is K.
- Question 2Easy
Find the next term in the series: G, J, M, P, ?
- A.T
- B.X
- C.O
- D.B
- E.SCorrect
Show solution
Each letter advances by 3 places in the alphabet, so the term after P is S.
- Question 3Easy
Find the next term in the series: J, L, N, P, ?
- A.RCorrect
- B.S
- C.D
- D.V
- E.Y
Show solution
Each letter advances by 2 places in the alphabet, so the term after P is R.
- Question 4Easy
Find the next term in the series: B, D, F, H, ?
- A.W
- B.A
- C.JCorrect
- D.B
- E.X
Show solution
Each letter advances by 2 places in the alphabet, so the term after H is J.
- Question 5Easy
Find the next term in the series: B, E, H, K, ?
- A.E
- B.NCorrect
- C.A
- D.Q
- E.R
Show solution
Each letter advances by 3 places in the alphabet, so the term after K is N.
- Question 6Easy
Find the next term in the series: D, G, J, M, ?
- A.U
- B.T
- C.O
- D.PCorrect
- E.K
Show solution
Each letter advances by 3 places in the alphabet, so the term after M is P.
- Question 7Easy
Find the next term in the series: I, K, M, O, ?
- A.QCorrect
- B.R
- C.N
- D.L
- E.C
Show solution
Each letter advances by 2 places in the alphabet, so the term after O is Q.
- Question 8Easy
Find the next term in the series: H, J, L, N, ?
- A.G
- B.T
- C.E
- D.V
- E.PCorrect
Show solution
Each letter advances by 2 places in the alphabet, so the term after N is P.
- Question 9Easy
Find the next term in the series: K, M, O, Q, ?
- A.M
- B.W
- C.SCorrect
- D.P
- E.V
Show solution
Each letter advances by 2 places in the alphabet, so the term after Q is S.
- Question 10Easy
Find the next term in the series: J, M, P, S, ?
- A.H
- B.VCorrect
- C.C
- D.S
- E.N
Show solution
Each letter advances by 3 places in the alphabet, so the term after S is V.
- Question 11Easy
Find the next letter: A, C, E, G, ?
- A.H
- B.ICorrect
- C.J
- D.K
Show solution
The series skips one letter each time: A (+2) C (+2) E (+2) G (+2) I. Each step adds 2 to the alphabet position, so the next letter is I.
- Question 12Easy
Find the next term in the series: G, I, K, M, ?
- A.U
- B.S
- C.J
- D.T
- E.OCorrect
Show solution
Each letter advances by 2 places in the alphabet, so the term after M is O.
These are 12 of 40 letter series questions in the bank. Attempt the rest with instant feedback in the practice drills, or under a clock in the mock tests.
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Frequently asked questions
How many Letter Series questions are here?
This page shows 12 worked letter series questions from a bank of 40, spanning 15 easy, 11 moderate and 14 hard. The full set is available to attempt in the timed-free practice drills and the mock tests.
Which exams ask Letter Series questions?
Letter Series is a standard Reasoning Ability topic across bank and railway recruitment exams.
Are these Letter Series questions free, and are the answers reliable?
Yes. Every question is free, written in-house to the exam pattern rather than copied from a real paper, and the numeric answer keys are recomputed independently at build time — a wrong key fails the build rather than reaching you.