Part a: use ratio language to describe the relationship of any two things you can think of.
example: for every 5 minutes of jogging, i ran 500 yards.
be creative and come up with your own idea.
part b: determine the unit rate in your example

Part A :

In every 40 minutes, Ram types 8 pages of a book,

Thus, there is a relation between typed pages and time taken by Ram.

Part B :

Unit rate : the number of units of first quantity in one unit of second quantity,

∵ number of typed pages in 40 minutes = 8

So, the number of typed pages in 1 minute = =

Hence, the unit rate of typing = pages per minute.