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Alphanumeric Series - Intermediate Level: complex alphanumeric INTERMEDIATE

Level up your alphanumeric series skills with this comprehensive review. 20 intermediate-level problems await in Worksheet 14 of 30. Focus area: complex alphanumeric. Learn series completion, pattern recognition, alphanumeric reasoning through systematic practice. Designed for mid-level learners seeking moderate complexity with mixed patterns.

📝 Worksheet 14 of 30 • 20 questions • ⏱️ Estimated time: 20 minutes • 🎯 Intermediate level

What you'll learn in this worksheet:
Your progress through Alphanumeric Series
Worksheet 14 of 30 (46% complete)

Question 1

Find the next term: C1, J8, Q15, X22
Letters move by +7, number increments by 7. Wraparound used for letters.
series, modular

Question 2

Find the next term: B1, C4, D9, E16
Number is term position squared (1,4,9,16,25). Letter increases by one each time.
series, math transform

Question 3

Find the next term in the series: G1, H4, I9, J16
Pattern: Letter increases by 1 each position, Number is the square of the position number.
Position 1: G1
Position 2: H4
Position 3: I9
Position 4: J16
Position 5: Letter = K, Number = 5² = 25 → K25
series, position

Question 4

In sequence: A7, C6, E5, G4, I3, K2, M1, what is the term 2 positions before the 3th term?
Reference required position backward.
reverse, crossref, series

Question 5

In the sequence: I2*, J3!, K4@, L5#, M6$, N7*, O8!, which term is three places after the term with digit '2'?
Locate digit 2 in the sequence (position 1), then jump 3 places forward to position 4: L5#.
relative, position, series

Question 6

Find the next group in the series: LM1617, NO1819, QR2021
Groups: Letter steps follow Fibonacci (1,2,3,5), numbers increase by 2 each time. Next is VW2223.
series, grouped

Question 7

Find the next term in the series: I1, J2, K3, L5
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 = M, Number = 8 → M8
series, position

Question 8

Find the next term in the series: O1, P4, Q9, R16
Pattern: Letter increases by 1 each position, Number is the square of the position number.
Position 1: O1
Position 2: P4
Position 3: Q9
Position 4: R16
Position 5: Letter = S, Number = 5² = 25 → S25
series, position

Question 9

Find the next palindromic term in the pattern: HIH, IJI, JKJ, KLK
Each term is a 3-letter palindrome, with both outer and middle letters moving forward by 1 each time.
series, palindrome

Question 10

Find the next palindromic term in the pattern: MNM, NON, OPO, PQP
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: A1, H8, O15, V22
Letters move by +7, number increments by 7. Wraparound used for letters.
series, modular

Question 12

Find the next term in the series: P1, Q4, R9, S16
Pattern: Letter increases by 1 each position, Number is the square of the position number.
Position 1: P1
Position 2: Q4
Position 3: R9
Position 4: S16
Position 5: Letter = T, Number = 5² = 25 → T25
series, position

Question 13

Find the missing term in the series: E2, G4, I6, ?, M10
Each step adds 2 to letter and 2 to number.
The missing term comes fourth: K8.
series, missing term

Question 14

In the sequence: F5!, G6@, H7#, I8$, J9*, K0!, L1@, 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: J9*.
relative, position, series

Question 15

What comes next in the series: F2, I4, N8, U16
Letters advance by increasing steps: 1, 3, 5, 7; numbers double each time.
series, jump

Question 16

What comes next in the series: G2, J4, O8, V16
Letters advance by increasing steps: 2, 3, 5, 7; numbers double each time.
series, jump

Question 17

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

Question 18

Find the next term in the series: L1, M3, N6, O10
Pattern: Letter increases by 1 each position, Number is the triangular number (1, 3, 6, 10, 15...).
Position 5: Letter = P, Number = 15 → P15
series, position

Question 19

What comes next in the hybrid series: C6, E12, H24, M48
Letters move by steps: 1, 2, 3, 5, numbers double each time. Next step +8 for letter, ×2 for number.
series, hybrid

Question 20

What is the next term in the sequence: D4, F7, H0, J3, L6?
Letters advance by 2 (starting D), digits advance by 3 (mod 10).
multi_skip, double_encode
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