Atrain travels 82 kilometers in 2 hours, and then 91 kilometers in 3 hours. what is its average speed?

if he is naked in public on purpose then yes. that is a crime and you should call the police as he could be a threat to females/ might flash.

solution:

→c= a b , that is product of a and b is possible only when when a is m × n matrix and b is n × p matrix.

that is, number of columns of a= number of rows of b.

so, size of matrix , c= a b is , if a = (m × n)matrix

b= (n × p)matrix

then a b = [ (m × n)matrix] ×[   (n × p)matrix ]

→→c= a b= [m × p ] matrix

→→size of product a b will be equal to = number of rows of a × number of columns of b