finding the average value

could anyone help me to find the average of A if A=[1 2 3 4; 5 6 7 8; 9 10 11 12; 13 14 15 16;]

B=[10 20 30 40]

i want to add and divide first column by 10, second column by 20,third column by 30 and fourth column by 40.

Answer 1

[Stephen23]

bsxfun(@rdivide,sum(A,1),B)
ans =
     2.8       1.6      1.2      1