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Alphanumeric Series - Advanced Level: mixed sequences ADVANCED

Boost your speed and accuracy with this high difficulty set 📈 worksheet. Worksheet 25 of 30 presents 20 advanced-level alphanumeric series problems. Focus on mixed sequences while practicing character patterns, alphanumeric patterns, mixed character logic. Difficulty: complex scenarios and multi-step problems. Perfect for advanced test takers.

📝 Worksheet 25 of 30 • 20 questions • ⏱️ Estimated time: 20 minutes • 🎯 Advanced level

What you'll learn in this worksheet:
Your progress through Alphanumeric Series
Worksheet 25 of 30 (83% 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: P, 10, R, 12, T, ?
Odd terms: letters +2; Even terms: numbers +2.
series, alternate

Question 3

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

Question 4

Find the missing term in the series: I2, L3, O4, ?, U6
Each step adds 3 to letter and 1 to number.
The missing term comes fourth: R5.
series, missing term

Question 5

Find the next group in the series: KL1718, NO2021, ST2728
Groups: Steps follow prime numbers (2,3,5,7). Next is ZA3839.
series, grouped

Question 6

What comes next: G1, J4, M7, P10 ?
Letters move +3, numbers +3. Continue pattern: next is S13.
series, pattern

Question 7

Find the next group in the series: IJ1415, LM1718, QR2425
Groups: Steps follow prime numbers (2,3,5,7). Next is XY3536.
series, grouped

Question 8

In sequence: A7, C6, E5, G4, I3, K2, M1, what is the term 2 positions before the 5th term?
Reference required position backward.
reverse, crossref, series

Question 9

Find the next term: K1, O5, S9, W13
Letters move by +4, number increments by 4. Wraparound used for letters.
series, modular

Question 10

Find the next term: G1, H4, I9, J16
Number is term position squared (1,4,9,16,25). Letter increases by one each time.
series, math transform

Question 11

What comes next in the series: E2, H4, M8, T16
Letters advance by increasing steps: 2, 3, 5, 7; numbers double each time.
series, jump

Question 12

Find the next term if odd position letters advance by 3, even position numbers follow (i+2)*2: F4, K4, L8, Q8, R12
Odd-indexed positions: letter advances by 3 from F, number = (position+2)×2 = 14 at position 5. Next term: U14.
embed_logic, series

Question 13

Find the missing term in the series: K2, N3, Q4, ?, W6
Each step adds 3 to letter and 1 to number.
The missing term comes fourth: T5.
series, missing term

Question 14

What is the next term in the sequence: B6, D9, F2, H5, J8?
Letters advance by 2 (starting B), digits advance by 3 (mod 10).
multi_skip, double_encode

Question 15

In the sequence: H5*, I6!, J7@, K8#, L9$, M0*, N1!, which term is three places after the term with digit '2'?
Locate digit 2 in the sequence (position 2), then jump 3 places forward to position 5: L9$.
relative, position, series

Question 16

Find the next term: N1, O4, P9, Q16
Number is term position squared (1,4,9,16,25). Letter increases by one each time.
series, math transform

Question 17

Find the next term: L, 5, O, 8, R, ?
Odd terms: letters +3; Even terms: numbers +3.
series, alternate

Question 18

Find the next term if odd position letters advance by 3, even position numbers follow (i+2)*2: B4, G4, H8, M8, N12
Odd-indexed positions: letter advances by 3 from B, number = (position+2)×2 = 14 at position 5. Next term: Q14.
embed_logic, series

Question 19

What comes next in the series: D1, E2, G4, I8
Letters advance by increasing steps: 1, 1, 2, 2; numbers double each time.
series, jump

Question 20

Find the next term: O, 3, Q, 5, S, ?
Odd terms: letters +2; Even terms: numbers +2.
series, alternate
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