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Matrix Coding - Intermediate-Advanced Level: grid logic INTERMEDIATE-ADVANCED

Ready to master matrix coding? This time-bound test features 20 intermediate-advanced-level challenges. Worksheet 22 of 30 sharpens your grid logic skills. Master matrix patterns, grid coding, row-column decoding through guided practice. Perfect for advanced developing test preparation.

📝 Worksheet 22 of 30 • 20 questions • ⏱️ Estimated time: 20 minutes • 🎯 Intermediate-advanced level

What you'll learn in this worksheet:
Your progress through Matrix Coding
Worksheet 22 of 30 (73% complete)

Question 1

Matrix A: 3 2 6 1 9 8 1 5 8 Matrix B: 4 9 9 1 2 7 4 3 8 What is the result of matrix addition (element-wise)?
Performing element-wise addition:
Row1: 3+4=7 + 2+9=11 + 6+9=15
Row2: 1+1=2 + 9+2=11 + 8+7=15
Row3: 1+4=5 + 5+3=8 + 8+8=16
arithmetic, operations, calculation

Question 2

In a 5×5 matrix: Row1: A B C D E Row2: F G H I J Row3: K L M N O Row4: P Q R S T Row5: U V W X Y 'GAME' is coded as (row,col) combination. What is the code?
Matrix positions: G=(2,2) A=(1,1) M=(3,3) E=(1,5) → Combined code: 22113315
matrix, position, coding

Question 3

In matrix: 1 2 3 4 5 6 7 8 9 What is the sum of main diagonal?
The sum of main diagonal: 1 + 5 + 9 = 15
numbers, matrix, arithmetic

Question 4

In a 6×6 matrix (row0-5, col0-5) containing letters A-Z and digits 0-9 in row-major order, encode 'ENCODE' by giving row and column numbers concatenated.
Position mapping: E→(0,4) N→(2,1) C→(0,2) O→(2,2) D→(0,3) E→(0,4) → 042102220304
cipher, position, encoding

Question 5

If A=0001, B=0010, C=0011, D=0100, E=0101, F=0110, G=0111, H=1000, I=1001, J=1010, K=1011, L=1100 (binary sequence 1-12), then 'FACE' in binary?
Binary coding: F=0110 + A=0001 + C=0011 + E=0101 = 0110000100110101
binary, advanced, encoding

Question 6

In a 6×6 matrix (row0-5, col0-5) containing letters A-Z and digits 0-9 in row-major order, encode 'MATRIX' by giving row and column numbers concatenated.
Position mapping: M→(2,0) A→(0,0) T→(3,1) R→(2,5) I→(1,2) X→(3,5) → 200031251235
cipher, position, encoding

Question 7

In matrix: 1 2 3 4 5 6 7 8 9 What is the sum of main diagonal?
The sum of main diagonal: 1 + 5 + 9 = 15
numbers, matrix, arithmetic

Question 8

Matrix A: 6 2 6 7 5 5 7 7 8 Matrix B: 6 6 6 4 2 2 1 4 3 What is the result of matrix addition (element-wise)?
Performing element-wise addition:
Row1: 6+6=12 + 2+6=8 + 6+6=12
Row2: 7+4=11 + 5+2=7 + 5+2=7
Row3: 7+1=8 + 7+4=11 + 8+3=11
arithmetic, operations, calculation

Question 9

In the 4×4 matrix: A B C D E F G H I J K L M N O P If we follow the main diagonal path (Start at (1,1) and move diagonally down-right), what word do we get?
Following the main diagonal path: (1,1)=A (2,2)=F (3,3)=K (4,4)=P → AFKP
path, navigation, reading

Question 10

If A=0001, B=0010, C=0011, D=0100, E=0101, F=0110, G=0111, H=1000, I=1001, J=1010, K=1011, L=1100 (binary sequence 1-12), then 'BAD' in binary?
Binary coding: B=0010 + A=0001 + D=0100 = 001000010100
binary, advanced, encoding

Question 11

In matrix: 2 9 4 7 5 3 6 1 8 Which row has the maximum sum?
Row sums: Row1=15, Row2=15, Row3=15. Maximum is Row 1 with sum 15
operations, analysis, comparison

Question 12

In pattern matrix: * @ # $ @ # $ * # $ * @ $ * @ # Code 'DCBA' using A=col1, B=col2, C=col3, D=col4, row advances sequentially (row0, row1, row2, row3, then repeats)?
Coding process: D→$ C→$ B→$ A→$ = $$$$
pattern, symbols, coding

Question 13

In the 4×4 matrix: A B C D E F G H I J K L M N O P If we follow the first column path (Start at (1,1) and move down), what word do we get?
Following the first column path: (1,1)=A (2,1)=E (3,1)=I (4,1)=M → AEIM
path, navigation, reading

Question 14

Matrix A: 5 3 5 7 4 3 2 7 9 Matrix B: 1 2 6 3 5 6 8 5 5 What is the result of matrix element-wise multiplication (element-wise)?
Performing element-wise element-wise multiplication:
Row1: 5+1=5 + 3+2=6 + 5+6=30
Row2: 7+3=21 + 4+5=20 + 3+6=18
Row3: 2+8=16 + 7+5=35 + 9+5=45
arithmetic, operations, calculation

Question 15

Original matrix: 2 4 6 8 10 12 14 16 18 After rotated-90 transformation, the matrix becomes:
Applying rotated-90 transformation yields:
14 8 2
16 10 4
18 12 6
transformation, geometry, rotation

Question 16

Using this 5×5 cipher matrix: ★ ♠ ♣ ♥ ♦ ♣ ♥ ♦ ★ ♠ ♦ ★ ♠ ♣ ♥ ♠ ♣ ♥ ♦ ★ ♥ ♦ ★ ♠ ♣ Letters A-T map to cells in row-major order (A→★, B→♠, C→♣, D→♥, E→♦, etc.) What is the encoded form of 'PUZZLE'?
Encoding 'PUZZLE': P→♠ L→★ E→♦ = ♠★♦
decoding, cipher, puzzle

Question 17

In matrix: 3 8 1 5 2 7 9 4 6 Which row has the minimum sum?
Row sums: Row1=12, Row2=14, Row3=19. Minimum is Row 1 with sum 12
operations, analysis, comparison

Question 18

Matrix A: 6 4 2 5 9 5 2 9 7 Matrix B: 7 2 2 7 5 4 2 3 1 What is the result of matrix subtraction (element-wise)?
Performing element-wise subtraction:
Row1: 6+7=-1 + 4+2=2 + 2+2=0
Row2: 5+7=-2 + 9+5=4 + 5+4=1
Row3: 2+2=0 + 9+3=6 + 7+1=6
arithmetic, operations, calculation

Question 19

If A=0001, B=0010, C=0011, D=0100, E=0101, F=0110, G=0111, H=1000, I=1001, J=1010, K=1011, L=1100 (binary sequence 1-12), then 'BED' in binary?
Binary coding: B=0010 + E=0101 + D=0100 = 001001010100
binary, advanced, encoding

Question 20

Using this 5×5 cipher matrix: ★ ♠ ♣ ♥ ♦ ♣ ♥ ♦ ★ ♠ ♦ ★ ♠ ♣ ♥ ♠ ♣ ♥ ♦ ★ ♥ ♦ ★ ♠ ♣ Letters A-T map to cells in row-major order (A→★, B→♠, C→♣, D→♥, E→♦, etc.) What is the encoded form of 'PUZZLE'?
Encoding 'PUZZLE': P→♠ L→★ E→♦ = ♠★♦
decoding, cipher, puzzle
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