Alphanumeric Series - Intermediate Level: mixed series INTERMEDIATE

Quick mental agility ★ session: 20 intermediate-level alphanumeric series questions. Worksheet 17 of 30 - Focus: mixed series. Practice letter-number sequences, character patterns, alphanumeric patterns with instant feedback. Great for mid-level students needing moderate complexity with mixed patterns practice.

📝 Worksheet 17 of 30 • 20 questions • ⏱️ Estimated time: 20 minutes • 🎯 Intermediate level

What you'll learn in this worksheet:

Master letter-number sequences through focused mixed series practice
Learn character patterns with intermediate-level examples
Build speed in solving alphanumeric series using mental agility ★ techniques
Understand common patterns in alphanumeric patterns
Apply logical thinking to mixed series scenarios

Your progress through Alphanumeric Series

Worksheet 17 of 30 (56% complete)

Question 1

Find the next term: U1, Z6, E11, J16

Letters move by +5, number increments by 5. Wraparound used for letters.

series, modular

Question 2

Find the missing term in the series: K2, M3, O4, ?, S6

Each step adds 2 to letter and 1 to number.
The missing term comes fourth: Q5.

series, missing term

Question 3

What comes next in the hybrid series: G4, J8, Q16, F32

Letters move by steps: 1, 3, 7, 15, numbers double each time. Next step +31 for letter, ×2 for number.

series, hybrid

Question 4

In sequence: A7, C6, E5, G4, I3, K2, M1, what is the term 2 positions before the 4th term?

Reference required position backward.

reverse, crossref, series

Question 5

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 6

Find the next group in the series: LM2122, NO2324, QR2526

Groups: Letter steps follow Fibonacci (1,2,3,5), numbers increase by 2 each time. Next is VW2728.

series, grouped

Question 7

Find the next term: I, 10, K, 12, M, ?

Odd terms: letters +2; Even terms: numbers +2.

series, alternate

Question 8

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 9

Find the next term if odd position letters advance by 3, even position numbers follow (i+2)*2: N4, S4, T8, Y8, Z12

Odd-indexed positions: letter advances by 3 from N, number = (position+2)×2 = 14 at position 5. Next term: C14.

embed_logic, series

Question 10

Find the next palindromic term in the pattern: PQP, QRQ, RSR, STS

Each term is a 3-letter palindrome, with both outer and middle letters moving forward by 1 each time.

series, palindrome

Question 11

Find the next term in the series: I1, L4, O7, R10

This series alternates letters and numbers, each increasing by 3.
Last term: R10 → next: U13.

series, next term

Question 12

Find the term that does NOT follow the series: B2, E5, I8, K11, N14

The series follows +3 for both letter and number. Position 3: should be H, but given term is I (I8).

series, find wrong

Question 13

Fill in the missing term: V11, T9, R7, ?, N3

Letters move back by 2; numbers -2 each time.

series, reverse

Question 14

Find the next term: H1, O8, V15, C22

Letters move by +7, number increments by 7. Wraparound used for letters.

series, modular

Question 15

Find the next term: F1, G4, H9, I16

Number is term position squared (1,4,9,16,25). Letter increases by one each time.

series, math transform

Question 16

Find the next palindromic term in the pattern: UVU, VWV, WXW, XYX

Each term is a 3-letter palindrome, with both outer and middle letters moving forward by 1 each time.

series, palindrome

Question 17

Find the next term in the series: N1, Q4, T7, W10

This series alternates letters and numbers, each increasing by 3.
Last term: W10 → next: Z13.

series, next term

Question 18

Find the missing term in the series: H2, J3, L4, ?, P6

Each step adds 2 to letter and 1 to number.
The missing term comes fourth: N5.

series, missing term

Question 19

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 20

Fill in the missing term: W11, U9, S7, ?, O3

Letters move back by 2; numbers -2 each time.

series, reverse

🚀 Keep the momentum! Worksheet 17 builds your mixed series skills.

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