The number of all possible matrices of order $3×4$ with each entry 1, 2 or 3 are :
Answer & explanation
Correct answer: option 3
Matrix order: 3×4 → total entries = 3*4 = 12
Each entry can be 1, 2, or 3 → 3 choices per entry
Total number of matrices = $3^{12}$
Answer: $3^{12}$