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Letter Series - Intermediate Level: vowel series INTERMEDIATE

Quick mental agility ★ session: 20 intermediate-level letter series questions. Worksheet 17 of 30 - Focus: vowel series. Practice vowel series, consonant patterns, alphabet gaps with instant feedback. Great for mid-level students needing moderate complexity with mixed patterns practice.

📝 Worksheet 17 of 30 • 20 questions • ⏱️ Estimated time: 20 minutes • 🎯 Intermediate level

What you'll learn in this worksheet:
Your progress through Letter Series
Worksheet 17 of 30 (56% complete)

Question 1

Find the next letter in the series: B, G, C, H, ?
Two interleaved sequences. Next: I.
interleaved, double

Question 2

Find the next letter in the series: H, I, J, K, ?
Consecutive alphabetical order. L comes after K.
consecutive, basic

Question 3

Find the next letter in the series: B, C, E, G, ?
Letters at prime positions. Next prime position: 11 → K.
primes, positions

Question 4

Find the next letter in the series: U, X, V, Y, W, Z, ?
Alternating +3/-2. Next: X.
alternating, forward-backward

Question 5

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

Question 6

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

Question 7

Find the next letter in the series: B, C, D, E, ?
Two interleaved sequences. Next: G.
interleaved, double

Question 8

Find the next letter in the series: R, S, T, U, ?
Consecutive alphabetical order. V comes after U.
consecutive, basic

Question 9

Find the next letter in the series: I, J, L, O, S, ?
Increasing jumps (+1, +2, +3...). Next: X.
increasing, jumps

Question 10

Find the next letter in the series: R, S, T, V, W, ?
Consonant sequence. Next consonant: X.
consonants, skip-vowels

Question 11

Find the next letter in the mirror series: G, H, I, J, K, ?
Mirror image (A↔Z, B↔Y...). Mirror of next letter: O.
mirror, symmetry

Question 12

Find the next letter in the series: C, E, H, M, ?
Letters at Fibonacci positions. Next: U.
fibonacci, positions

Question 13

Find the next letter in the series: C, D, F, I, ?
Increasing jumps (+1, +2, +3...). Next: M.
increasing, jumps

Question 14

Find the next letter in the series: J, D, K, E, ?
Two interleaved sequences. Next: F.
interleaved, double

Question 15

Find the next letter in the series: T, U, V, W, X, Y, ?
Consecutive alphabetical order. Z comes after Y.
consecutive, basic

Question 16

Find the next letter in the series: G, K, M, Q, ?
Letters at prime positions. Next prime position: 19 → S.
primes, positions

Question 17

Find the next letter in the series: A, B, C, ?
Letters at Fibonacci positions. Next: E.
fibonacci, positions

Question 18

Find the next letter in the series: M, Q, S, ?
Letters at prime positions. Next prime position: 23 → W.
primes, positions

Question 19

Find the next letter in the series: B, B, C, D, D, F, ?
Odd positions: +1, Even positions: +2. Next: H.
odd-even, mixed-step

Question 20

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