Matrix Coding
🎓 Master important formulas and concepts with examples, shortcuts, and practice exercises. Build speed, accuracy, and confidence for exam success.
Study Material
Matrix Coding – Sample Questions
The following solved examples cover all major Matrix Coding question patterns asked in SSC, Banking, Railway, Insurance, Defence, State PSC, Management Entrance, and aptitude examinations.
These questions focus on row-column mapping logic, coordinate verification, code decoding, alternative elimination, and matrix-based reasoning techniques.
Sample Question 1
In the following matrices, letters are represented by their row and column numbers.
A letter can be represented first by its row number and then by its column number.
Which of the following represents the correct code for the word LANE?
Options:
- (a) 11, 66, 32, 79
- (b) 31, 87, 22, 58
- (c) 11, 76, 32, 89
- (d) 31, 66, 32, 58
Solution
From the matrix:
L = 11 or 31
A = 66, 87, 99
N = 32
E = 58, 79, 88, 97
Only option (d) satisfies all letter-code combinations correctly.
Answer: (d) 31, 66, 32, 58
Sample Question 2
Using the given matrices, identify the correct code for the word AIRS.
Options:
- (a) 43, 55, 86, 95
- (b) 12, 76, 99, 78
- (c) 00, 68, 78, 88
- (d) 24, 69, 56, 78
Solution
From the matrix:
A = 00, 12, 24, 31, 43
I = 55, 68, 76, 89, 97
R = 57, 65, 78, 86, 99
S = 58, 66, 79, 87, 95
Only option (a) contains valid codes for all letters.
Answer: (a) 43, 55, 86, 95
Sample Question 3
If the code for the word BOOK is represented as:
21 44 44 13
Which coordinate pair represents the repeated letter?
Options:
- (a) 21
- (b) 44
- (c) 13
- (d) None of these
Solution
The repeated letter in BOOK is:
O
Repeated coordinate pair:
44
Answer: (b) 44
Sample Question 4
If:
M = 20
A = 12
P = 43
Then what is the code for the word MAP?
Options:
- (a) 20 12 43
- (b) 12 20 43
- (c) 43 20 12
- (d) 20 43 12
Solution
Word:
MAP
Codes:
M → 20
A → 12
P → 43
Therefore:
MAP = 20 12 43
Answer: (a) 20 12 43
Sample Question 5
In a certain matrix coding system:
C = 10, H = 33, E = 24
What is the code for the word CHEESE?
Options:
- (a) 10 33 24 24 45 24
- (b) 33 10 24 45 24 24
- (c) 10 24 33 24 45 24
- (d) 24 33 10 24 45 24
Solution
CHEESE:
C → 10
H → 33
E → 24
E → 24
S → 45
E → 24
Correct code sequence:
10 33 24 24 45 24
Answer: (a) 10 33 24 24 45 24
Sample Question 6
If the code 21 43 12 30 represents the word LAMP, then what does the code 43 12 30 represent?
Options:
- (a) AMP
- (b) LAM
- (c) MAP
- (d) PAM
Solution
Given:
21 → L
43 → A
12 → M
30 → P
Therefore:
43 12 30 = AMP
Answer: (a) AMP
Sample Question 7
In a matrix coding system, if:
R = 57, O = 66, S = 79, E = 88
What is the code for the word ROSE?
Options:
- (a) 57 66 79 88
- (b) 66 57 79 88
- (c) 57 79 66 88
- (d) 79 66 57 88
Solution
ROSE:
R → 57
O → 66
S → 79
E → 88
Therefore:
ROSE = 57 66 79 88
Answer: (a) 57 66 79 88
Sample Question 8
Which of the following mistakes is most likely to produce an incorrect Matrix Coding answer?
Options:
- (a) Reading rows before columns
- (b) Verifying all options
- (c) Reversing row-column order
- (d) Checking multiple matrices
Solution
Matrix Coding follows:
Row → Column
If a candidate reverses this order, the generated code becomes incorrect.
Answer: (c) Reversing row-column order
Sample Question 9
In a certain coding matrix:
T = 58 or 87
R = 66 or 95
E = 21 or 44
Which of the following can represent the word TREE?
Options:
- (a) 58 66 21 44
- (b) 87 95 44 44
- (c) 58 95 21 21
- (d) All of these
Solution
All options use valid codes for:
T, R, E, and E
Therefore, every option correctly represents TREE.
Answer: (d) All of these
Fast Solving Framework for Matrix Coding
Locate Letter
↓
Find Row Number
↓
Find Column Number
↓
Generate Coordinate Pair
↓
Verify All Letters Carefully
↓
Eliminate Incorrect Options
Final Takeaway
Matrix Coding questions are highly scoring when solved using systematic row-column tracking, positional verification, elimination techniques, and coordinate-pair analysis.
Regular practice of these standard examination patterns improves observation ability, logical reasoning speed, decoding accuracy, and overall competitive-exam performance.