Consider the statement: Ratio of breadth and length of a hall is $2:5$. Complete the following table that shows some possible breadths and lengths of the hall.

Breadth of the hall (in meters)	$10$	$\square$	$40$
Length of the hall (in meters)	$25$	$50$	$\square$

 

 

Present age of father is $42$ years and that of his son is $14$ years. Find the ratio of:

Present age of father to the present age of son.

Present age of father is $42$ years and that of his son is $14$ years. Find the ratio of:

Age of father to the age of son, when son was $12$ years old.

Present age of father is $42$ years and that of his son is $14$ years. Find the ratio of:

Age of father after $10$ years to the age of son after $10$ years.

Present age of father is $42$ years and that of his son is $14$ years. Find the ratio of:

Age of father to the age of son when father was $30$ years old.