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Mixed Series - Beginner-Intermediate Level: pattern recognition BEGINNER-INTERMEDIATE

This deep dive ★ worksheet contains 20 beginner-intermediate-level mixed series problems. Worksheet 11 of 30 focuses on pattern recognition. Practice mixed character series, pattern recognition, alternating series with our step-by-step solutions. Difficulty: building on fundamentals with moderate challenges. Recommended for developing learners.

📝 Worksheet 11 of 30 • 20 questions • ⏱️ Estimated time: 20 minutes • 🎯 Beginner-intermediate level

What you'll learn in this worksheet:
Your progress through Mixed Series
Worksheet 11 of 30 (36% complete)

Question 1

Find the next item in the series: 17, B, 19, C, ?
Alternating prime numbers and consonants. Next is 23
primes, consonants

Question 2

Find the next item in the series: M, 14, O, 16, Q, ?
Alternating between letters and their positions in alphabet (A=1, B=2, ...). Letters advance by 3 each time. Next is 18
alphabet, position

Question 3

Find the next item in the series: 11, L, 13, N, 15, P, 17, ?
Alternating between letters and their positions in alphabet (A=1, B=2, ...). Letters advance by 3 each time. Next is R
alphabet, position

Question 4

Find the next item in the series: V, 23, W, 29, X, 31, ?
Alternating prime numbers and consonants. Next is Y
primes, consonants

Question 5

Find the next item in the series: 2, D, 5, F, ?
Fibonacci sequence (2, 3, ...) with position-based letters. Next Fibonacci number is 13, so answer is 13
fibonacci, letters

Question 6

Find the next item in the series: 2, N, 3, P, 5, ?
Alternating prime numbers and consonants. Next is Q
primes, consonants

Question 7

Find the next item in the series: 64, D, 125, E, 216, F, ?
Alternating perfect cubes (starting from 4³=64) and corresponding letters. Next is 343
cubes, letters

Question 8

Find the next item in the series: U, 1, A, 2, ?
Alternating factorial numbers (1, 2, ...) and vowels in forward order. Next is E
factorial, vowels

Question 9

Find the next item in the series: A, 1, B, 8, C, 27, D, ?
Alternating perfect cubes (starting from 1³=1) and corresponding letters. Next is 64
cubes, letters

Question 10

Find the next item in the series: 1, I, 4, K, 4, M, 5, ?
Two independent patterns: numbers follow fibonacci progression, letters follow forward pattern. Next letter is O
double, interleaved

Question 11

Find the next item in the series: I, 9, A, 27, C, 81, ?
Alternating powers of 3 (3^2=9, 3^3=27, ...) and corresponding letters. Next is I
power, exponential, letters

Question 12

Find the next item in the series: 29, D, 31, C, 37, ?
Alternating prime numbers and consonants. Next is B
primes, consonants

Question 13

Find the next item in the series: 16, F, 25, I, 36, L, 49, ?
Two independent patterns: numbers follow square progression, letters follow skip pattern. Next letter is O
double, interleaved

Question 14

Find the next item in the series: 16, B, 25, C, 36, D, 49, ?
Two independent patterns: numbers follow square progression, letters follow consonant-cycle pattern. Next letter is F
double, interleaved

Question 15

Find the next item in the series: 5, T, 8, V, 11, X, ?
Alternating series: numbers follow increasing by 3 pattern, letters follow forward by 2 pattern. Next number is 14
alternating, basic

Question 16

Find the next item in the series: P, 16, L, 64, V, ?
Alternating powers of 4 (4^2=16, 4^3=64, ...) and corresponding letters. Next is 256
power, exponential, letters

Question 17

Find the next item in the series: 2, U, 7, O, 12, I, ?
Numbers increase by 5, vowels reverse A-E-I-O-U pattern. Next is 17
arithmetic, vowels

Question 18

Find the next item in the series: 4, F, 8, C, 12, Z, ?
Alternating series: numbers follow increasing by 4 pattern, letters follow backward by 3 pattern. Next number is 16
alternating, basic

Question 19

Find the next item in the series: D, 4, P, 16, L, ?
Alternating powers of 4 (4^1=4, 4^2=16, ...) and corresponding letters. Next is 64
power, exponential, letters

Question 20

Find the next item in the series: 1, A, 4, B, 9, C, 16, ?
Alternating perfect squares (starting from 1²=1) and corresponding letters. Next is D
squares, letters
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