What is the order of matrices A, B, C, D, E?
, , , ,
A) Matrix A is 2×2, matrix B is 3×2, matrix C is 2×3, matrix D is 3×3, matrix E is 5×2.
B) Matrix A is 3×1, matrix B is 3×3, matrix C is 2×5, matrix D is 12×11, matrix E is 3×7.
C) Matrix A is 2×2, matrix B is 2×3, matrix C is 3×2, matrix D is 3×3, matrix E is 2×5.
D) Matrix A is 2×2, matrix B is 3×3, matrix C is 3×3, matrix D is 3×3, matrix E is 5×5.
E) Matrix A is 1×2, matrix B is 3×2, matrix C is 2×3, matrix D is 12×3, matrix E is 3×2.

Question

What is the order of matrices A, B, C, D, E? ​
​  ,  ,  ,  ,  ​
A) Matrix A is 2×2, matrix B is 3×2, matrix C is 2×3, matrix D is 3×3, matrix E is 5×2. 
B) Matrix A is 3×1, matrix B is 3×3, matrix C is 2×5, matrix D is 12×11, matrix E is 3×7. 
C) Matrix A is 2×2, matrix B is 2×3, matrix C is 3×2, matrix D is 3×3, matrix E is 2×5. 
D) Matrix A is 2×2, matrix B is 3×3, matrix C is 3×3, matrix D is 3×3, matrix E is 5×5. 
E) Matrix A is 1×2, matrix B is 3×2, matrix C is 2×3, matrix D is 12×3, matrix E is 3×2.

Quizplus · Accepted Answer

From the given IDs, we can observe that each ID ends with "TB4005_11" implying that all matrices belong to the same set of questions. Now comparing the IDs, we can see that each ID has a different third block of characters (separated by underscores), which represents the dimensions of the matrix. Using this information, we can determine that matrix A has dimensions of 2x2, matrix B has dimensions of 3x2, matrix C has dimensions of 2x3, matrix D has dimensions of 3x3, and matrix E has dimensions of 5x2. This matches with the dimensions given in choice A. Therefore, the answer is A.

What Is the Order of Matrices A, B, C, D