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Matrix Coding - Intermediate Level: border patterns INTERMEDIATE

Level up your matrix coding skills with this comprehensive review. 20 intermediate-level problems await in Worksheet 14 of 30. Focus area: border patterns. Learn grid logic, matrix decoding, table patterns 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 Matrix Coding
Worksheet 14 of 30 (46% complete)

Question 1

In a 6×6 matrix (row0-5, col0-5) containing letters A-Z and digits 0-9 in row-major order, encode 'SECRET' by giving row and column numbers concatenated.
Position mapping: S→(3,0) E→(0,4) C→(0,2) R→(2,5) E→(0,4) T→(3,1) → 300402250431
cipher, position, encoding

Question 2

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 3

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 4

Matrix A: 5 5 3 1 5 9 3 6 1 Matrix B: 4 7 2 1 4 1 7 4 6 What is the result of matrix addition (element-wise)?
Performing element-wise addition:
Row1: 5+4=9 + 5+7=12 + 3+2=5
Row2: 1+1=2 + 5+4=9 + 9+1=10
Row3: 3+7=10 + 6+4=10 + 1+6=7
arithmetic, operations, calculation

Question 5

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 'SOFT' is coded as (row,col) combination. What is the code?
Matrix positions: S=(4,4) O=(3,5) F=(2,1) T=(4,5) → Combined code: 44352145
matrix, position, coding

Question 6

In matrix: 1 4 7 2 5 8 3 6 9 Which column has the minimum sum?
Column sums: Col1=6, Col2=15, Col3=24. Minimum is Column 1 with sum 6
operations, analysis, comparison

Question 7

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 8

If letters are at coordinates A(1,1), B(1,2), C(1,3), D(1,4), E(2,1), F(2,2), G(2,3), H(2,4), I(3,1), J(3,2), K(3,3), L(3,4), M(4,1), N(4,2), O(4,3), P(4,4), then 'CODE' coordinates are?
Coordinate mapping: C(1, 3) O(4, 3) D(1, 4) E(2, 1)
coordinates, position, mapping

Question 9

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 10

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 11

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 'CAB' in binary?
Binary coding: C=0011 + A=0001 + B=0010 = 001100010010
binary, advanced, encoding

Question 12

Matrix A: 6 2 1 8 7 5 8 9 6 Matrix B: 7 2 1 1 8 4 6 7 6 What is the result of matrix element-wise multiplication (element-wise)?
Performing element-wise element-wise multiplication:
Row1: 6+7=42 + 2+2=4 + 1+1=1
Row2: 8+1=8 + 7+8=56 + 5+4=20
Row3: 8+6=48 + 9+7=63 + 6+6=36
arithmetic, operations, calculation

Question 13

Matrix A: 8 7 3 8 5 8 5 9 8 Matrix B: 6 5 8 1 5 4 9 3 1 What is the result of matrix element-wise multiplication (element-wise)?
Performing element-wise element-wise multiplication:
Row1: 8+6=48 + 7+5=35 + 3+8=24
Row2: 8+1=8 + 5+5=25 + 8+4=32
Row3: 5+9=45 + 9+3=27 + 8+1=8
arithmetic, operations, calculation

Question 14

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 bottom row path (Start at (4,1) and move right), what word do we get?
Following the bottom row path: (4,1)=M (4,2)=N (4,3)=O (4,4)=P → MNOP
path, navigation, reading

Question 15

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 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 'MATRIX'?
Encoding 'MATRIX': M→♠ A→★ T→★ R→♥ I→★ = ♠★★♥★
decoding, cipher, puzzle

Question 17

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 18

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

Question 19

If letters are at coordinates A(1,1), B(1,2), C(1,3), D(1,4), E(2,1), F(2,2), G(2,3), H(2,4), I(3,1), J(3,2), K(3,3), L(3,4), M(4,1), N(4,2), O(4,3), P(4,4), then 'MATH' coordinates are?
Coordinate mapping: M(4, 1) A(1, 1) H(2, 4)
coordinates, position, mapping

Question 20

Matrix A: 8 8 3 7 2 5 8 4 5 Matrix B: 1 5 6 4 1 4 3 2 7 What is the result of matrix addition (element-wise)?
Performing element-wise addition:
Row1: 8+1=9 + 8+5=13 + 3+6=9
Row2: 7+4=11 + 2+1=3 + 5+4=9
Row3: 8+3=11 + 4+2=6 + 5+7=12
arithmetic, operations, calculation
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