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Letter Series - Advanced Level: alternate series ADVANCED

Master letter series concepts through this hard problem set practice set. Worksheet 26 of 30 contains 20 advanced-level problems. Deep dive into alternate series while learning alphabet gaps, reverse patterns, skip sequences. Recommended for advanced learners aiming for complex scenarios and multi-step problems.

📝 Worksheet 26 of 30 • 20 questions • ⏱️ Estimated time: 20 minutes • 🎯 Advanced level

What you'll learn in this worksheet:
Your progress through Letter Series
Worksheet 26 of 30 (86% complete)

Question 1

Find the next letter in the series: U, T, S, R, Q, P, ?
Reverse alphabetical order. Next: O.
reverse, backward

Question 2

Find the next letter in the series: B, C, D, F, G, ?
Consonant sequence. Next consonant: H.
consonants, skip-vowels

Question 3

Find the next letter in the series: D, E, F, G, H, I, ?
Consecutive alphabetical order. J comes after I.
squares, positions

Question 4

Find the next letter in the mirror series: L, M, N, O, ?
Mirror image (A↔Z, B↔Y...). Mirror of next letter: K.
mirror, symmetry

Question 5

Find the next letter in the series: B, C, E, H, L, ?
Increasing jumps (+1, +2, +3...). Next: Q.
increasing, jumps

Question 6

Find the next letter in the series: I, O, U, A, ?
Vowel sequence. Next vowel after A is E.
vowels, circular

Question 7

Find the next letter in the series: L, M, N, P, Q, ?
Consonant sequence. Next consonant: R.
consonants, skip-vowels

Question 8

Find the next letter in the series: A, D, I, ?
Letters at square positions: 1², 2², ... Next: P.
squares, positions

Question 9

Find the next letter in the series: K, M, O, Q, S, ?
Each letter skips 1 letter(s). Next: U.
skip, pattern

Question 10

Find the next letter in the series: N, P, O, Q, P, R, Q, ?
Alternating +2/-1. Next: S.
alternating, forward-backward

Question 11

Find the next letter in the series: B, C, E, ?
Letters at prime positions. Next prime position: 7 → G.
primes, positions

Question 12

Find the next letter in the series: I, H, K, I, ?
Two interleaved sequences. Next: J.
interleaved, double

Question 13

Find the next letter in the series: C, D, F, G, ?
Consonant sequence. Next consonant: H.
consonants, skip-vowels

Question 14

Find the next letter in the series: I, O, U, A, ?
Vowel sequence. Next vowel after A is E.
vowels, circular

Question 15

Find the next letter in the series: F, A, H, C, J, ?
Two interleaved sequences. Next: J.
interleaved, double

Question 16

Find the next letter in the series: G, G, H, I, I, K, ?
Odd positions: +1, Even positions: +2. Next: M.
odd-even, mixed-step

Question 17

Find the next letter in the mirror series: K, L, M, ?
Mirror image (A↔Z, B↔Y...). Mirror of next letter: M.
mirror, symmetry

Question 18

Find the next letter in the series: V, W, X, Y, Z, ?
Consonant sequence. Next consonant: B.
consonants, skip-vowels

Question 19

Find the next letter in the series: N, P, Q, R, ?
Consonant sequence. Next consonant: S.
consonants, skip-vowels

Question 20

Find the next letter in the series: D, I, P, ?
Letters at square positions: 2², 3², ... Next: Y.
squares, positions
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