ReasoningAbility.com

Mixed Series - Expert Level: dual progression EXPERT

Intensive progress check 🎯 drill: 20 expert-level mixed series questions. Worksheet 30 of 30 hones your dual progression abilities. Practice letter-number combinations, symbol sequences, mixed character series under timed conditions. Best for expert-level students seeking challenging problems and time-bound practice.

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

What you'll learn in this worksheet:
Your progress through Mixed Series
Worksheet 30 of 30 (100% complete)

Question 1

Find the next item in the series: E, 8, M, 21, ?
Fibonacci sequence (5, 8, ...) with alternating numbers/letters. Next Fibonacci number is 34, so answer is H
fibonacci, letters

Question 2

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 3

Find the next item in the series: 8, E, 9, B, 10, Y, ?
Alternating series: numbers follow increasing by 1 pattern, letters follow backward by 3 pattern. Next number is 11
alternating, basic

Question 4

Find the next item in the series: 1, E, 2, I, ?
Alternating factorial numbers (1, 2, ...) and vowels in forward order. Next is 6
factorial, vowels

Question 5

Find the next item in the series: 3, E, 8, G, 21, ?
Fibonacci sequence (3, 5, ...) with position-based letters. Next Fibonacci number is 34, so answer is I
fibonacci, letters

Question 6

Find the next item in the series: 67, F, 71, G, 73, H, ?
Alternating prime numbers and consonants. Next is 79
primes, consonants

Question 7

Find the next item in the series: 16, R, 25, T, 36, V, ?
Alternating series: numbers follow squares of 4, 5, ... pattern, letters follow forward by 2 pattern. Next number is 49
alternating, basic

Question 8

Find the next item in the series: 2, U, 6, T, 10, S, ?
Alternating series: numbers follow Fibonacci-style (2, 4, ...) pattern, letters follow backward by 1 pattern. Next number is 16
alternating, basic

Question 9

Find the next item in the series: 4, C, 9, F, 16, I, ?
Alternating series: numbers follow squares of 2, 3, ... pattern, letters follow forward by 3 pattern. Next number is 25
alternating, basic

Question 10

Find the next item in the series: 25, A, 36, C, 49, E, 64, ?
Two independent patterns: numbers follow square progression, letters follow forward pattern. Next letter is G
double, interleaved

Question 11

Find the next item in the series: 9, A, 13, I, 17, U, ?
Numbers increase by 4, vowels skip pattern A-E-I-O-U pattern. Next is 21
arithmetic, vowels

Question 12

Find the next item in the series: E, 6, G, 8, I, 10, ?
Alternating between letters and their positions in alphabet (A=1, B=2, ...). Letters advance by 2 each time. Next is K
alphabet, position

Question 13

Find the next item in the series: A, 3, I, 5, U, 7, ?
Numbers increase by 2, vowels skip pattern A-E-I-O-U pattern. Next is E
arithmetic, vowels

Question 14

Find the next item in the series: 3, S, 5, T, 7, V, ?
Alternating prime numbers and consonants. Next is 11
primes, consonants

Question 15

Find the next item in the series: 25, Q, 36, T, 49, W, ?
Alternating series: numbers follow squares of 5, 6, ... pattern, letters follow forward by 3 pattern. Next number is 64
alternating, basic

Question 16

Find the next item in the series: 3, C, 12, F, 48, I, ?
Numbers multiply by 4, letters advance by 3. Next is 192
geometric, alphabet

Question 17

Find the next item in the series: E, 6, I, 24, ?
Alternating factorial numbers (6, 24, ...) and vowels in forward order. Next is O
factorial, vowels

Question 18

Find the next item in the series: 25, E, 36, F, 49, ?
Alternating perfect squares (starting from 5²=25) and corresponding letters. Next is G
squares, letters

Question 19

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

Question 20

Find the next item in the series: 4, D, 9, F, 16, ?
Alternating perfect squares (starting from 2²=4) and position-based letters. Next is H
squares, letters
Previous Worksheet Next Worksheet