Question

The total number of matrices that can be formed using 5 different letters such that no letter is repeated in any matrix, is eqaul to​

Answer 1

Answer:

There can be 3 types of such matrices such as 1×4,2×2,4×1  

and in every such matrix,there are four elements each element in the matrix is independent and has 4 different choices

∴ The number of different matrices that can be formed =3×4  

4