ReasoningAbility.com

Mixed Series - Intermediate-Advanced Level: hybrid series INTERMEDIATE-ADVANCED

This fundamentals focus worksheet contains 20 intermediate-advanced-level mixed series problems. Worksheet 21 of 30 focuses on hybrid series. Practice complex sequences, multi-rule patterns, hybrid series with our step-by-step solutions. Difficulty: advanced concepts with increasing complexity. Recommended for advanced developing learners.

📝 Worksheet 21 of 30 • 20 questions • ⏱️ Estimated time: 20 minutes • 🎯 Intermediate-advanced level

What you'll learn in this worksheet:
Your progress through Mixed Series
Worksheet 21 of 30 (70% complete)

Question 1

Find the next item in the series: L, 64, V, 256, J, 1024, ?
Alternating powers of 4 (4^3=64, 4^4=256, ...) and corresponding letters. Next is N
power, exponential, letters

Question 2

Find the next item in the series: 9, E, 16, G, 25, I, 36, K, ?
Alternating perfect squares (starting from 3²=9) and position-based letters. Next is 49
squares, letters

Question 3

Find the next item in the series: 61, L, 67, K, 71, J, ?
Alternating prime numbers and consonants. Next is 73
primes, consonants

Question 4

Find the next item in the series: 2, A, 5, E, 8, I, ?
Numbers increase by 3, vowels cycle through A-E-I-O-U pattern. Next is 11
arithmetic, vowels

Question 5

Find the next item in the series: 4, B, 9, C, 16, D, ?
Alternating perfect squares (starting from 2²=4) and corresponding letters. Next is 25
squares, letters

Question 6

Find the next item in the series: 4, K, 9, P, 16, U, 25, ?
Two independent patterns: numbers follow square progression, letters follow skip pattern. Next letter is Z
double, interleaved

Question 7

Find the next item in the series: H, 7, J, 11, ?
Alternating prime numbers and consonants. Next is K
primes, consonants

Question 8

Find the next item in the series: I, 10, K, 12, M, 14, ?
Alternating between letters and their positions in alphabet (A=1, B=2, ...). Letters advance by 3 each time. Next is O
alphabet, position

Question 9

Find the next item in the series: U, 24, A, 120, ?
Alternating factorial numbers (24, 120, ...) and vowels in forward order. Next is E
factorial, vowels

Question 10

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 11

Find the next item in the series: 9, C, 16, D, 25, E, 36, ?
Alternating perfect squares (starting from 3²=9) and corresponding letters. Next is F
squares, letters

Question 12

Find the next item in the series: A, 3, E, 6, I, 9, ?
Numbers increase by 3, vowels cycle through A-E-I-O-U pattern. Next is O
arithmetic, vowels

Question 13

Find the next item in the series: D, 2, G, 8, J, 32, ?
Numbers multiply by 4, letters advance by 3. Next is M
geometric, alphabet

Question 14

Find the next item in the series: C, 27, D, 64, E, 125, ?
Alternating perfect cubes (starting from 3³=27) and corresponding letters. Next is F
cubes, letters

Question 15

Find the next item in the series: 4, E, 16, Q, 64, M, ?
Numbers multiply by 4, letters advance by 1. Next is 256
geometric, alphabet

Question 16

Find the next item in the series: D, 4, H, 8, P, 16, F, ?
Alternating powers of 2 (2^2=4, 2^3=8, ...) and corresponding letters. Next is 32
power, exponential, letters

Question 17

Find the next item in the series: 1, F, 3, J, 3, N, 4, ?
Two independent patterns: numbers follow fibonacci progression, letters follow forward pattern. Next letter is R
double, interleaved

Question 18

Find the next item in the series: 3, D, 5, F, 7, H, 9, ?
Alternating between letters and their positions in alphabet (A=1, B=2, ...). Letters advance by 1 each time. Next is J
alphabet, position

Question 19

Find the next item in the series: D, 16, E, 25, F, ?
Alternating perfect squares (starting from 4²=16) and corresponding letters. Next is 36
squares, letters

Question 20

Find the next item in the series: 9, I, 27, A, 81, C, 243, ?
Alternating powers of 3 (3^2=9, 3^3=27, ...) and corresponding letters. Next is I
power, exponential, letters
Previous Worksheet Next Worksheet