Alphanumeric Series Notes- Reasoning
Alphanumeric Series Notes for CUET, CLAT & IPMAT | Concepts, Types, PYQs & Solutions
Alphanumeric Series is one of the most scoring topics in the Reasoning section of CUET, CLAT, and IPMAT exams. These questions test your ability to identify patterns involving letters, numbers, and symbols. With the right approach, students can solve these questions in seconds.
⭐ What is an Alphanumeric Series?
An alphanumeric series is a sequence that contains a mix of letters (A–Z), numbers (0–9), and symbols (@, #, $, %, etc.) arranged in a logical or repetitive pattern.
The candidate must decode the pattern and answer questions based on:
Position of letters
Number sequences
Symbol patterns
Forward/backward arrangement
Skipping or jumping patterns
Alphanumeric series notes, alphanumeric series reasoning, CUET reasoning notes, CLAT logical reasoning, IPMAT alphanumeric series, reasoning PYQs, reasoning tricks, exam preparation, reasoning chapter notes, alphanumeric sequence questions.
⭐ Types of Alphanumeric Series
1. Pure Alphanumeric Sequence
Mix of letters + numbers + symbols in a fixed sequence.
2. Letter-Based Pattern
Patterns based on alphabetical position:
A=1, B=2, C=3 … Z=26
3. Number-Based Pattern
Numbers follow a mathematical rule: +2, –3, ×2, ÷2, etc.
4. Symbol-Based Pattern
Symbols placed in a repeated or alternating pattern.
5. Mixed Series (Most Asked in CUET, CLAT & IPMAT)
Combination of letters, numbers, and symbols in multiple layers of logic.
6. Position-Based Questions
Find:
5th from left
8th from right
How many letters/digits between X and Y
Which element is second to the left/right of a given element
⭐ How to Solve Alphanumeric Series Quickly
✔ Identify separate patterns for letters, numbers, and symbols.
✔ Convert letters to positions: A=1, Z=26
✔ Observe repeated cycles: ABC ABC…, 2 4 6 2 4 6…
✔ Check skipping patterns: +2, –3, +5
✔ Break long series into groups for easier analysis.
📘 Previous Year Based Questions (PYQs) with Detailed Solutions
PYQ 1 (CUET Level)
Series:
Question:
How many letters are immediately followed by a number?
Solution:
Check pairs:
A–3 → ✔
C–5 → ✔
E–7 → ✔
G–9 → ✔
I → no following number
Total = 4
Answer: 4
PYQ 2 (CLAT Type)
Series:
Question:
Which element is third to the right of 6?
Solution:
Locate 6 → position 4
Count three places to the right → positions 5, 6, 7
7th element = P
Answer: P
PYQ 3 (IPMAT–Indore Based)
Series:
Question:
How many numbers are preceded by a symbol?
Step-by-step:
Check only numbers:
2 → preceded by nothing
5 → preceded by % → ✔
8 → preceded by @ → ✔
11 → preceded by # → ✔
Total = 3
Answer: 3
PYQ 4 (CUET 2023 Styled)
Series:
Find the pattern in letters.
Solution:
Letter positions:
B(2), D(4), G(7), K(11), P(16)
Pattern:
+2, +3, +4, +5 …
Correct increasing-skip pattern.
Answer: Letters follow a +2, +3, +4, +5 positional pattern.
PYQ 5 (IPMAT–Rohtak Type)
Series:
Question:
If all numbers are removed, which is the 4th element from the left?
Remove numbers:
@ A # C % E & G
4th element → C
Answer: C
PYQ 6 (CLAT 2022 Styled)
Series:
Question:
How many vowels appear in the series?
Solution:
Letters present: Z, Y, X, W, V, U
Only vowel = U
Answer: 1
PYQ 7 (CUET Mixed Series)
Series:
Question:
Find the pattern in numbers.
Solution:
Numbers: 3, 8, 13, 18
Pattern = +5 each time.
Answer: Numbers increase by 5.
PYQ 8 (IPMAT High-Level)
Series:
Find the pattern in letters.
Solution:
Alphabet positions:
A(1), B(2), D(4), G(7), K(11)
Differences:
+1, +2, +3, +4 → increasing order.
Answer: Letters follow +1, +2, +3, +4 pattern.
🧠Practice Questions (Try Yourself)
(Useful for CUET, CLAT, IPMAT mock test preparation)
A 2 @ D 5 # H 9 % M — What is 4th element to the left of ‘9’?
P 3 # R 6 % U 10 @ Z — How many letters are followed by symbols?
4 A 7 C 11 F 16 J — Identify the number pattern.
If vowels are removed from the series B @ E 2 I # O 7 U %, what is the 5th element?
⭐ What is an Alphanumeric Series?
An alphanumeric series is a sequence that contains a mix of letters (A–Z), numbers (0–9), and symbols (@, #, $, %, etc.) arranged in a logical or repetitive pattern.
The candidate must decode the pattern and answer questions based on:Position of letters
Number sequences
Symbol patterns
Forward/backward arrangement
Skipping or jumping patterns
⭐ Types of Alphanumeric Series
1. Pure Alphanumeric Sequence
Mix of letters + numbers + symbols in a fixed sequence.
2. Letter-Based Pattern
Patterns based on alphabetical position:
A=1, B=2, C=3 … Z=263. Number-Based Pattern
Numbers follow a mathematical rule: +2, –3, ×2, ÷2, etc.
4. Symbol-Based Pattern
Symbols placed in a repeated or alternating pattern.
5. Mixed Series (Most Asked in CUET, CLAT & IPMAT)
Combination of letters, numbers, and symbols in multiple layers of logic.
6. Position-Based Questions
Find:
5th from left
8th from right
How many letters/digits between X and Y
Which element is second to the left/right of a given element
⭐ How to Solve Alphanumeric Series Quickly
✔ Identify separate patterns for letters, numbers, and symbols.
✔ Convert letters to positions: A=1, Z=26
✔ Observe repeated cycles: ABC ABC…, 2 4 6 2 4 6…
✔ Check skipping patterns: +2, –3, +5
✔ Break long series into groups for easier analysis.📘 Previous Year Based Questions (PYQs) with Detailed Solutions
PYQ 1 (CUET Level)
Series:
Question:
How many letters are immediately followed by a number?Solution:
Check pairs:
A–3 → ✔
C–5 → ✔
E–7 → ✔
G–9 → ✔
I → no following number
Total = 4
Answer: 4
PYQ 2 (CLAT Type)
Series:
Question:
Which element is third to the right of 6?Solution:
Locate 6 → position 4
Count three places to the right → positions 5, 6, 7
7th element = PAnswer: P
PYQ 3 (IPMAT–Indore Based)
Series:
Question:
How many numbers are preceded by a symbol?Step-by-step:
Check only numbers:
2 → preceded by nothing
5 → preceded by % → ✔
8 → preceded by @ → ✔
11 → preceded by # → ✔
Total = 3
Answer: 3
PYQ 4 (CUET 2023 Styled)
Series:
Find the pattern in letters.
Solution:
Letter positions:
B(2), D(4), G(7), K(11), P(16)Pattern:
+2, +3, +4, +5 …Correct increasing-skip pattern.
Answer: Letters follow a +2, +3, +4, +5 positional pattern.
PYQ 5 (IPMAT–Rohtak Type)
Series:
Question:
If all numbers are removed, which is the 4th element from the left?Remove numbers:
@ A # C % E & G
4th element → C
Answer: C
PYQ 6 (CLAT 2022 Styled)
Series:
Question:
How many vowels appear in the series?Solution:
Letters present: Z, Y, X, W, V, U
Only vowel = UAnswer: 1
PYQ 7 (CUET Mixed Series)
Series:
Question:
Find the pattern in numbers.Solution:
Numbers: 3, 8, 13, 18
Pattern = +5 each time.Answer: Numbers increase by 5.
PYQ 8 (IPMAT High-Level)
Series:
Find the pattern in letters.
Solution:
Alphabet positions:
A(1), B(2), D(4), G(7), K(11)Differences:
+1, +2, +3, +4 → increasing order.Answer: Letters follow +1, +2, +3, +4 pattern.
🧠Practice Questions (Try Yourself)
(Useful for CUET, CLAT, IPMAT mock test preparation)
A 2 @ D 5 # H 9 % M — What is 4th element to the left of ‘9’?
P 3 # R 6 % U 10 @ Z — How many letters are followed by symbols?
4 A 7 C 11 F 16 J — Identify the number pattern.
If vowels are removed from the series B @ E 2 I # O 7 U %, what is the 5th element?
⭐ What is an Alphanumeric Series?
An alphanumeric series is a sequence that contains a mix of letters (A–Z), numbers (0–9), and symbols (@, #, $, %, etc.) arranged in a logical or repetitive pattern.
The candidate must decode the pattern and answer questions based on:
Position of letters
Number sequences
Symbol patterns
Forward/backward arrangement
Skipping or jumping patterns
⭐ Types of Alphanumeric Series
1. Pure Alphanumeric Sequence
Mix of letters + numbers + symbols in a fixed sequence.
2. Letter-Based Pattern
Patterns based on alphabetical position:
A=1, B=2, C=3 … Z=26
3. Number-Based Pattern
Numbers follow a mathematical rule: +2, –3, ×2, ÷2, etc.
4. Symbol-Based Pattern
Symbols placed in a repeated or alternating pattern.
5. Mixed Series (Most Asked in CUET, CLAT & IPMAT)
Combination of letters, numbers, and symbols in multiple layers of logic.
6. Position-Based Questions
Find:
5th from left
8th from right
How many letters/digits between X and Y
Which element is second to the left/right of a given element
⭐ How to Solve Alphanumeric Series Quickly
✔ Identify separate patterns for letters, numbers, and symbols.
✔ Convert letters to positions: A=1, Z=26
✔ Observe repeated cycles: ABC ABC…, 2 4 6 2 4 6…
✔ Check skipping patterns: +2, –3, +5
✔ Break long series into groups for easier analysis.
📘 Previous Year Based Questions (PYQs) with Detailed Solutions
PYQ 1 (CUET Level)
Series:
Question:
How many letters are immediately followed by a number?
Solution:
Check pairs:
A–3 → ✔
C–5 → ✔
E–7 → ✔
G–9 → ✔
I → no following number
Total = 4
Answer: 4
PYQ 2 (CLAT Type)
Series:
Question:
Which element is third to the right of 6?
Solution:
Locate 6 → position 4
Count three places to the right → positions 5, 6, 7
7th element = P
Answer: P
PYQ 3 (IPMAT–Indore Based)
Series:
Question:
How many numbers are preceded by a symbol?
Step-by-step:
Check only numbers:
2 → preceded by nothing
5 → preceded by % → ✔
8 → preceded by @ → ✔
11 → preceded by # → ✔
Total = 3
Answer: 3
PYQ 4 (CUET 2023 Styled)
Series:
Find the pattern in letters.
Solution:
Letter positions:
B(2), D(4), G(7), K(11), P(16)
Pattern:
+2, +3, +4, +5 …
Correct increasing-skip pattern.
Answer: Letters follow a +2, +3, +4, +5 positional pattern.
PYQ 5 (IPMAT–Rohtak Type)
Series:
Question:
If all numbers are removed, which is the 4th element from the left?
Remove numbers:
@ A # C % E & G
4th element → C
Answer: C
PYQ 6 (CLAT 2022 Styled)
Series:
Question:
How many vowels appear in the series?
Solution:
Letters present: Z, Y, X, W, V, U
Only vowel = U
Answer: 1
PYQ 7 (CUET Mixed Series)
Series:
Question:
Find the pattern in numbers.
Solution:
Numbers: 3, 8, 13, 18
Pattern = +5 each time.
Answer: Numbers increase by 5.
PYQ 8 (IPMAT High-Level)
Series:
Find the pattern in letters.
Solution:
Alphabet positions:
A(1), B(2), D(4), G(7), K(11)
Differences:
+1, +2, +3, +4 → increasing order.
Answer: Letters follow +1, +2, +3, +4 pattern.
🧠Practice Questions (Try Yourself)
(Useful for CUET, CLAT, IPMAT mock test preparation)
A 2 @ D 5 # H 9 % M — What is 4th element to the left of ‘9’?
P 3 # R 6 % U 10 @ Z — How many letters are followed by symbols?
4 A 7 C 11 F 16 J — Identify the number pattern.
If vowels are removed from the series B @ E 2 I # O 7 U %, what is the 5th element?
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