Ben is 4 times as old as ishaan and also 6 years older than ishaan.
How old is ishaan?

ishaan is 2 yrs old

Step-by-step explanation:

ben            ishaan

4x+6            x

4x + 6=x

6=3x

x=2

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