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Alphabet Series Puzzles — Questions and Answers

Alphabet puzzles hide a numerical rule behind letters. Convert every letter to its position, solve the arithmetic, then convert back — and the entire topic becomes routine. Two aids make this fast: the EJOTY anchors (E = 5, J = 10, O = 15, T = 20, Y = 25) and the opposite-letter rule, in which paired positions always sum to 27.

6 solved questionsMissing Letters PuzzlesFree · no signup

Alphabet Series Puzzles— Concepts, Formulas & Shortcuts

  • EJOTY anchors: E = 5, J = 10, O = 15, T = 20, Y = 25 — never count from A.
  • Opposite letter: position 27 − n (A↔Z, D↔W, M↔N).
  • Vowel positions: A = 1, E = 5, I = 9, O = 15, U = 21.
  • For grouped series (AC, EG, IK…), analyse the first and second letters as two independent sequences.
  • "nth letter from the left/right" questions: from the right, position = 27 − position from the left.
  • Reverse series are just negative differences — the method does not change.

Alphabet Series Puzzles Practice Questions with Answers

Attempt each question first, then open the explanation. All 6 questions below are free to read and require no signup.

  1. Q1.Complete the series: A, E, I, ?, U

    Easy
    • AM
    • BO
    • CP
    • DS
    +Show Answer & Explanation

    Answer: B. O

    Explanation: The series lists the vowels in order: A, E, I, O, U.

    Alphabet Series Puzzles question 1 of 6

  2. Q2.Complete the series: B, D, F, H, ?

    Easy
    • AI
    • BJ
    • CK
    • DL
    +Show Answer & Explanation

    Answer: B. J

    Explanation: Positions 2, 4, 6, 8 increase by 2 → next is 10 = J.

    Alphabet Series Puzzles question 2 of 6

  3. Q3.Complete the series: AC, EG, IK, ?

    Moderate
    • ALN
    • BMO
    • CNP
    • DMP
    +Show Answer & Explanation

    Answer: B. MO

    Explanation: First letters A, E, I advance by 4 → M. Second letters C, G, K advance by 4 → O. So MO.

    Alphabet Series Puzzles question 3 of 6

  4. Q4.Complete the series: Z, Y, X, W, ?

    Easy
    • AU
    • BV
    • CT
    • DS
    +Show Answer & Explanation

    Answer: B. V

    Explanation: The letters run backwards one at a time → V.

    Alphabet Series Puzzles question 4 of 6

  5. Q5.Complete the series: AZ, CX, EV, ?

    Moderate
    • AGT
    • BGU
    • CFT
    • DHT
    +Show Answer & Explanation

    Answer: A. GT

    Explanation: First letters A, C, E advance by 2 → G. Second letters Z, X, V go back by 2 → T. So GT.

    Alphabet Series Puzzles question 5 of 6

  6. Q6.Which letter is 5th to the right of the 10th letter from the left of the English alphabet?

    Moderate
    • AN
    • BO
    • CP
    • DQ
    +Show Answer & Explanation

    Answer: B. O

    Explanation: The 10th letter from the left is J (position 10); five places to the right is position 15 = O.

    Alphabet Series Puzzles question 6 of 6

Alphabet Series Puzzles — Frequently Asked Questions

How do I quickly find a letter's position?+

Use the nearest EJOTY anchor and count at most two steps. For R, start at T = 20 and step back twice to get 18.

What is the opposite-letter rule?+

A letter and its opposite always have positions summing to 27. So the opposite of D (4) is the 23rd letter, W.

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