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Alphanumeric Series - Expert Level: complex alphanumeric EXPERT

Strategic basic drills ★ for alphanumeric series: 20 expert-level problems. Worksheet 29 of 30 - Focus: complex alphanumeric. Develop expertise in alphanumeric logic, mixed series, letter-number sequences with step-by-step solutions. Ideal for expert-level learners targeting challenging problems and time-bound practice.

📝 Worksheet 29 of 30 • 20 questions • ⏱️ Estimated time: 20 minutes • 🎯 Expert level

What you'll learn in this worksheet:
Your progress through Alphanumeric Series
Worksheet 29 of 30 (96% complete)

Question 1

Find the next term in the series: A0!, C3@, E6#, G9$, I2%
Letters advance by +2 (mod 26), digits advance by +3 (mod 10), symbols cycle through ['!', '@', '#', '$', '%']. Next term: letter=K, digit=5, symbol=^ → K5^.
symbol, group, series

Question 2

Find the next term if odd position letters advance by 3, even position numbers follow (i+2)*2: C4, H4, I8, N8, O12
Odd-indexed positions: letter advances by 3 from C, number = (position+2)×2 = 14 at position 5. Next term: R14.
embed_logic, series

Question 3

What comes next: F1, I4, L7, O10 ?
Letters move +3, numbers +3. Continue pattern: next is R13.
series, pattern

Question 4

Find the next term in the series: T1, U2, V3, W5
Pattern: Letter increases by 1 each position. Numbers follow the pattern: 1, 2, 3, 5, 8... (each number after the first two is the sum of the two preceding numbers).
Next: Letter = X, Number = 8 → X8
series, position

Question 5

Find the next term: Q, 7, T, 10, W, ?
Odd terms: letters +3; Even terms: numbers +3.
series, alternate

Question 6

What comes next: H1, K4, N7, Q10 ?
Letters move +3, numbers +3. Continue pattern: next is T13.
series, pattern

Question 7

Find the next palindromic term in the pattern: RSR, STS, TUT, UVU
Each term is a 3-letter palindrome, with both outer and middle letters moving forward by 1 each time.
series, palindrome

Question 8

Find the next group in the series: FG1718, HI1920, JK2122
Groups: Each is 2 letters and 2 digits, increasing by 2 each time. Next is LM2324.
series, grouped

Question 9

Find the next term: S1, T4, U9, V16
Number is term position squared (1,4,9,16,25). Letter increases by one each time.
series, math transform

Question 10

What is the next term in the sequence: K1, M4, O7, Q0, S3?
Letters advance by 2 (starting K), digits advance by 3 (mod 10).
multi_skip, double_encode

Question 11

What is the next term in the sequence: D6, F9, H2, J5, L8?
Letters advance by 2 (starting D), digits advance by 3 (mod 10).
multi_skip, double_encode

Question 12

Find the next term if odd position letters advance by 3, even position numbers follow (i+2)*2: J4, O4, P8, U8, V12
Odd-indexed positions: letter advances by 3 from J, number = (position+2)×2 = 14 at position 5. Next term: Y14.
embed_logic, series

Question 13

Find the term that does NOT follow the series: K2, M4, O6, Q8, T10
The series follows +2 for both letter and number. Position 5: should be S, but given term is T (T10).
series, find wrong

Question 14

Find the next term: S1, W5, A9, E13
Letters move by +4, number increments by 4. Wraparound used for letters.
series, modular

Question 15

Find the next term: E1, F4, G9, H16
Number is term position squared (1,4,9,16,25). Letter increases by one each time.
series, math transform

Question 16

Find the next term if odd position letters advance by 3, even position numbers follow (i+2)*2: O4, T4, U8, Z8, A12
Odd-indexed positions: letter advances by 3 from O, number = (position+2)×2 = 14 at position 5. Next term: D14.
embed_logic, series

Question 17

Find the next term in the series: A0!, C3@, E6#, G9$, I2%
Letters advance by +2 (mod 26), digits advance by +3 (mod 10), symbols cycle through ['!', '@', '#', '$', '%']. Next term: letter=K, digit=5, symbol=^ → K5^.
symbol, group, series

Question 18

Fill in the missing term: W11, U9, S7, ?, O3
Letters move back by 2; numbers -2 each time.
series, reverse

Question 19

Find the next term: M1, N4, O9, P16
Number is term position squared (1,4,9,16,25). Letter increases by one each time.
series, math transform

Question 20

In sequence: A7, C6, E5, G4, I3, K2, M1, what is the term 2 positions before the 6th term?
Reference required position backward.
reverse, crossref, series
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