If A is of order `ptimesq` and B is of order `qtimesr`, what is order of AB and BA?

If A is of order mxxn , B is of order pxxq such that AB is defined, then:

If A is of order 3 × 2 and B is of order 3 × 4 ,then order of (AB)' is _________

If A is of order 3 × 4 and B is of order 4 × 2 ,then order of AB is __________

Matrix A is of order mtimesn , matrix B is of order ptimesq such that AB exists, then

If A is a matrix of order 3xx4 and B is a matrix of order 4xx5 , what is the order of the matrix (AB)^(T) ?

If A is a matrix of order 2xx3 and B is a matrix of order 3xx2 , then what is the order of the matrix AB?

If A is a matrix of order 3xx4 and B is a matrix of order 4 xx5 then what is the order of the matrix (AB)^(T) ?

If A is a matrix of order 5xx2 and B is a matrix of order 2xx5 , then the order of matrix (BA)^T is equal to :