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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.

40 questionsReasoning Ability
  1. 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.

  2. 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.

  3. 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.

  4. 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.

  5. 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.

  6. 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.

  7. 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.

  8. 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.

  9. 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.

  10. 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.

  11. 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.

  12. 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.